Unlimited Alternatives/Militaries

Strategic Defence Alliance
The combined SDA forces are so massive that their numbers would be considered godmodding in more realistic RPs - or standard fare for the International Incidents board. This is largely due to the inclusion of the Akitsukunese Armed Forces, the single largest individual military force on the planet with over six million active troops. With every national military force included, the SDA forces number around 12.2 million, and if the SDA was a single nation it would be the largest standing army in the history of mankind.

Luckily the SDA isn't a hegemonic puppet empire controlled by a single nation...

Akitsukunese Armed Forces
The Akitsukunese Armed Forces has grown to become the single largest individual military force on the planet, with over 6,658,000 active troops in addition to high technology.

Imperial Akitsukunese Army
The Imperial Army is the largest force of the Armed Forces.

It operates armoured vehicles such as the Type-206 Suppression Tank, a scorpion-shaped mech equipped with four legs, two manipulator arms with 7.62mm rotary guns, and a 115mm short main gun on its "tail". It is equipped with heavy armour and anti-missile countermeasures, both soft and hard-kill. Walkers include the Type-39, which is armoured and equipped with a 20mm rotary cannon and anti-tank rockets, as well as the Helldiver, an airborne walker capable of being paradropped. More conventional armoured forces include powerful Type-61 main battle tanks and Overlord super heavy tanks.

The Imperial Army also operates specialised exosuit-wearing troops known as Mechanised Infantry, who wear heavily-armed exoskeleton suits equipped with a 7.62mm rotary gun and eight anti-tank missiles. In addition, the Type-303 Arm Suit is also used.

Powered Armour

 * Type-303
 * Also known as an "Armed Suit", the Type-303 was developed and first deployed in 2032 by Mitsuhishi for the Imperial Marines, gradually coming to be used by the Army as well. Standing about 1.5 times as tall as an adult human male, the 303 is the premier powered armour model in use with the Imperial Army and Marines and has found circulation throughout the globe. Its weapons are handheld and can thus be swapped with relative ease, though 303 units typically carry a rifle-shaped 20mm machine cannon with underbarrel 40mm grenade launcher. Similarly-scaled large-sized rocket launchers and even 30mm machine cannons also exist, and are often shared with the Type-28 Bushi walker. The suit's larger arms are controlled from direct physical input through mimicking identical appendages the pilot's arms go through. The “strings” can be cut from the slave arms for the pilot to control just the small master ones. Some models of the suit also have therm-optic camo. Jet assists allow momentary boosts of speed.
 * Type-70 Series
 * Copies of the Buyeoan "War Machine" powered armour suit, the Type-70 series was reverse-engineered from the suit worn by Major Lee Jin-suk, who was captured by the Elwhan Army in 2067 during the May 7th Incident. Due to cost issues and numerous complications arising from anti-tampering measures, the Type-70 series has inferior armour and mobility compared to the original suits. However, Akitsukunese engineers compensated for this by equipping the armour suits with even more weapons options, spawning at least three variants, and including the option to apply explosive reactive armour at the cost of further lowering mobility.
 * The Type-70あ is a heavily-armed suit designed to counter and act in a similar manner compared to basic Buyeoan steeltroopers. These units are equipped with a grenade launcher on the right arm, twin 5.56mm submachine guns in the left arm and a 12.7mm heavy machine gun mounted on the left shoulder. These suits are the most well-armoured of the three variants, utilising a classified, lightweight composite armour blend claimed to be superior to that used by Buyeoan steeltroopers. It is still known to be inferior to the original War Machine armour.
 * The Type-70い is designed to transform a single soldier into a potent anti-aircraft platform. Two banks of six surface-to-air missiles are located on either shoulder while three more missiles are mounted on pods on the forearms. While not intended for direct combat against ground forces, it still incorporates dual submachine guns in the left arm for self-defence. and is invulnerable to most small-arms fire. Typical force composition of a power-armour "kill squad" places a single Type-70い in support of four Type-70あ operators.
 * Type-70う is a new type of "special forces powered armour" developed in secret for the Imperial Army's TokuSa. Equipped with standard thermo-optic camouflage systems and experimental radar-absorbing stealth plating, the Type-70う can become visually and thermally invisible in addition to hiding from radar devices. They are also equipped with rocket jets that allow for boosted jumps or soft landings from airborne insertions. Armament-wise, the Type-70う is only equipped with twin submachine guns in the right arm, but mounts a modular weapons station on the left shoulder for mission-specific weapons systems such as sniper rifles or machine guns.

Tanks

 * Type-61
 * A main battle tank equipped with two 120mm cannons, the Type-61 is a relatively new armoured vehicle that has become the mainstay of the Imperial Army's armoured formations.
 * Type-24
 * A behemoth of a conventional tank, the Type-24 was unveiled before and used during the Second World War and the Third, proving itself extremely adequate for modern warfare. Nigh-indestructible and extremely heavily armed, the Type-24 provides sheer brute force, typical of the Imperial Army. A massive 152.4mm smoothbore high-velocity cannon provides it with firepower unrivalled by any other anti-vehicle weapon, while the combination of heavy composite armour plating, explosive reactive armour, electronic countermeasure systems and hard-kill anti-missile systems allow it to absorb phenomenal mounts of punishment. The only Type-24s to be lost in combat were destroyed by a tactical nuclear strike during the Invasion of Hanju, and later a fifth unit was lost to a nuclear IED during policing actions in Greater Sisimut in 2063.

Walkers

 * Type-20 Amplified Mobility Platform
 * The four-metre-tall Type-20 AMP is a medium-sized bipedal utility walker design produced by Mitsuhishi. Since its introduction in 2020, the Type-20 has found widespread use throughout the world both as a civilian and military vehicle, revolutionising areas such as industrial loadlifting, cargo handling, construction and more, in addition to being the first bipedal military vehicle and the ancestor of dozens of global combat walker designs. Rugged and reliable, the Type-20 can be found operating in all environments from the Arctic to jungles to deserts, and has also found use on the lunar Helium-3 mining sites. Sealed and pressurized models for toxic environments have been developed as well.
 * Operated by a single pilot, the multi-purpose machine amplifies the strength and mobility of a soldier or civilian worker while providing protection from military and environmental threats. The Type-20 is designs to have the same functionality as a human, with two legs, two arms and highly dexterous hands, allowing for a wide range of functions and enabling the militarised Type-20 to operate a variety of weapons systems. The arms operate in a directly scaled relationship to the operator’s arms, which allows better spatial positioning of the hands. The fingers and thumb are in direct 1:1 ratio. The servo armature has force feedback, and resists the movement of the operator’s arms when the suit's limbs meet an obstacle. The operator can "feel" what the suit is doing, and it is said that the suit can be operated in full darkness by a skilled driver, by "feel" alone. The legs are actuated by foot-pedals which amplify on an even larger ratio. Due to the confining spatial envelope around the feet and legs of the operator, the pedals cannot move in long strides, even on a scaled relationship. Instead, they sense the force and direction of the input and the on board computer triggers a corresponding programmed movement of the legs. So the operator creates pressure and direction "cues" which trigger leg movements. The suit executes the "intention" of the pilot, calculating terrain factors and momentum to perform balanced movement.
 * While an average pilot can learn to manipulate the Type-20 in combat conditions, it takes months longer to master the transition from supine to an upright position. However, through the use of gyroscopes and stability chips, modernised Type-20s rarely topple. Auto stability programming maintains centre of balance, and units can also be programmed to automatically "walk back" should the pilot be incapacitated or killed.
 * Using the walker, a pilot is able to punch through a tree trunk, lift a half ton cargo crate, rapidly build prefab units without a construction crew and more. In combat, the walker can provide heavy fire support to infantry units and protect its driver from harsh conditions.
 * The militarised Type-20 under the Imperial Army's service is often armed with a handheld 30mm autocannon fed by an ammo belt at the back to provide heavy fire support. On lighter missions, it is also known to be armed with the 20mm autocannon and grenade launcher hybrid also used by the Type-20's similarly sized descendants, the Type-303 Powered Armour and the Type-38 Bushi. Other non-standard weapons include combat knives and flamethrowers. The Type-20 is most often found in support of infantry companies and in combat engineer units or logistics support units, though the Type-38 Bushi, a dedicated military walker derived from the Type-20's design, is preferred for frontline combat roles.
 * Type-38 Bushi
 * The Type-38 Bushi is the militarised descendant of the Type-20 utility walker, and is wholly designed for combat unlike its multipurpose ancestor. Building on the bipedal structure of the Type-20, the Type-38 relies on speed and mobility in combat to outflank conventional vehicles such as tanks and APCs. Most notably, it eliminates the Type-20's clear canopy and introduces a fully-enclosed cockpit with external vision provided by cameras and a sensor-pod "head", giving the Type-38 a distinctly humanoid shape. The Type-38 is by far the most numerous combat walker in the service of Akitsukuni and her allies, and has also found use in civilian sectors as a police vehicle.
 * The limb control systems are largely identical to the Type-20's, but all components have been provided with heavy armour and reinforcement to withstand battlefield damage. An integral 7.62mm machine gun has also been incorporated to the torso area, and the dextrous hands are still able to operate external weapons systems, such as the 20mm cannon with 40mm grenade launcher weapon that has been mentioned numerous times on this page, 30mm belt-fed cannons, 105mm cannons for heavy fire support, rocket launchers and more.
 * Type-39 Muramasa
 * A combat walker.
 * Type-57 Nobunaga
 * A paradroppable combat walker.

Artillery

 * Type-46 "Thunderfist"
 * The Type-46 is one of the new mainstay artillery vehicles in the Imperial Army, utilising a 152mm gun in a turret located on the rear of a tracked truck chassis. It is capable of firing nuclear and guided rounds over 62,500 metres away.

Helicopters

 * Ke-38 "Jigabachi"
 * The Kenbishi Ke-38 Jigabachi is the most advanced and one of the most well-armed and advanced attack helicopters in the world. More than 65% of its mass is taken up by the main weapon, a 30mm rotary cannon of the type typically found on ground-attack fighters. It has day/night fire on the move capability that is provided by a laser range finder, thermal imaging night sight, optical day sight, and a digital ballistic computer, all controlled by its neural-linked pilot. Both the fuel and ammunition are compartmented to enhance survivability. The hull and turret are protected by advanced composite armour, and may be fitted with reactive armour to thwart armour-defeating munitions. In addition to its 30mm cannon, four wing-mounted hardpoints are also available for external munitions.
 * The secret to the Jigabachi's success and power, however, is the application of an AI system to aid in combat functions. The AI can assist with flight control, target acquisition assistance, equipment monitoring and more, allowing the single pilot to concentrate on the mission at hand and also execute AI-assisted manoeuvres and attacks to an astonishing degree of precision. The AI may even take full control of the craft if the pilot is incapacitated or killed.
 * The Jigabachi Hunter is a unique Jigabachi variant equipped with the largest gun ever mounted on a rotary-wing platform, a high-velocity rifled 105mm cannon. It is intended to hunt tanks and light armoured vehicles, attacking from the top. Due to the recoil of the weapon affecting stability upon firing, only the AI-equipped Jigabachi is able to mount such a large gun and compute the required thrust corrections to return to stable flight.
 * The Jigabachi Sniper is another variant of the Jigabachi, this time equipped with an array of five highly accurate 12.7mm sniper rifles. Each rifle is independently aimed and fired by an independent AI system upon being given authorisation from the pilot. The Jigabachi Sniper is often used to support covert ops missions or undertake assassination missions on its own, and is also a formidable anti-infantry platform. The AIs have a target acquisition and elimination time of roughly 3.8 seconds in restricted engagement mode, and 0.8 seconds in free-fire mode, of a stationary human-sized target at a range of 2 kilometres.
 * Ke-42 "Hanamuguri"
 * A tandem-rotor multi-role helicopter, the Hanamuguri can mount several different pods depending on mission type, ranging from air-to-air refuelling tanks and equipment to troop-carrying bays.

Floating Fortresses
Based on the basic floating platform city design widely used in coastal Akitsukuni and Co-Prosperity Sphere states to replace global warming-flooded coastal regions, the Imperial Navy's four Floating Fortresses are marvels of modern maritime engineering and military development. Designed to act as forward bases for the Navy, each of the fortresses - Genbu, Byakko, Suzaku and Seiryu - is extremely heavily armed with missiles and railguns, and protected by a dense net of CIWS, laser defences, countermeasures, "nanoswarm hives" and some of the strongest electronic warfare shielding in the world. The presence of a single fortress is enough to give the Empire control over an area's sea lanes, providing a mobile airfield, refuelling dock and artillery platform in a single well-defended package.

Genbu is located in the Arctic Ocean, acting to protect the northern sealanes from a potential Sinju Union attack. Byakko is stationed in the Unhae Ocean, Seiryu is located in the southern sea, and Suzaku protects the Sea of Akitsukuni itself. Each fortress is accompanied by a full naval strike group of its own, in addition to its own formidable air wing.

Warships
Akitsukuni has reclaimed their Fusenese naval tradition, building a massive naval fleet with all manner of warships, ranging from nuclear submarines to stealth destroyers to carrier-battleships.

Fighters
Su-31
 * Crew: 1 pilot
 * Total Length: 18.8 meters
 * Wingspan: 13.77 meters
 * Total Height: 5.01 meters
 * Weight: standard mission 11,876 kg; maximum 35,660 kg
 * Powerplant Output: 9,677 kg; afterburner 12,644 kg
 * Speed: cruise Mach 1.4; max Mach 2.7; fuselage load limit 9 G+
 * Maximum Altitude: 18,000 meters
 * Armament: 20mm vulcan gun x1, internal hardpoint x7, external hardpoint x2 (usually for drop tanks)

Tactical Surface Fighters
The Tactical Surface Fighter is a new type of war machine developed and pioneered by Akitsukuni. Essentially a self-propelled airborne walker, the TSF can fly to its target location before landing and engaging its targets with a variety of modular weapons systems or melee attacks. Like other walker-type war machines, TSFs are more manoeuvrable and flexible than traditional ground vehicles, able to act as a form of 'shock attacker' by rapidly closing the distance and attacking with unexpected melee attacks. For all their strengths as ground combatants, TSFs are however vulnerable during flight and are often escorted by fighters en route to their target locations.
 * Shimazu Su-57
 * Shiranui - The first and most numerous TSF.
 * Fubuki - Trainer
 * Shiranui Second - The Ultimate Mecha killer. Designed to fight and destroy Liberty Prime, as well as anything Sinju has.
 * Shiranui Second - The Ultimate Mecha killer. Designed to fight and destroy Liberty Prime, as well as anything Sinju has.

Akitsukuni Strategic Defence Force
JSSDF.

Sinju Army
Made up of various 'national' militaries merged under a single command structure???

Commonwealth Army
The Commonwealth Army is the largest branch of the CDF. The majority of the soldiers are gien standard combat armor (with additional protections compared to other forces) while the minority are equipped with Model 51 and Model 60 Power Armors designed to turn them into individual war machines nicknamed as Steeltroopers. With armor soldiers come armored beasts of war with the Commonwealth Army deploying the M-600 Turtle Tank, a battle tank that is claimed to have no equal in combat. The Army also employs armored transports and mobilized artillery to maximize its war machine.

Robots

 * Sentry Bots
 * The Sentry Bots are security robots made with the express purpose of participating in the heaviest of firefights during war. Where the protectron was originally designed for protecting business premises and crowd control, the sentry bot is a powerhouse, equipped with sturdy armor plating, powerful weapons integrated into its chassis and high mobility, thanks to mecanum wheels mounted on its three legs. It has been described as being a robotic light tank due to its function in combat.
 * Assaultrons
 * The Assaultron robot was constructed by Synthetic Solution and sold to the Commonwealth Military as a front-line wartime combatant. It is fast and deadly at close range, and employs a devastating burst of machine gun fire at a distance. The dominator variant can enable stealth technology. They are highly aggressive, fast, and will attack on sight with their .45 ACP machine gun rounds. The dominator variant is also equipped with a stealth field.
 * Giant
 * There is a secret project with rumors claiming that the project consists of a massive robot armed with enough firepowers to rampage half of of a country, though the Commonwealth Army denied any such rumors, claiming that any robot related projects would be based on armor or weapon upgrades for existing robots. Secretary of Defense Moon Eunsong called the rumors to be baseless and ridiculous stories that ignore logistical and economical concerns of employing a giant robot to war.

Tanks

 * M-600 Turtle Tank
 * The M-600 Turtle is a heavy armored fighting vehicle developed for the Armed Forces of the Commonwealth of Buyeo. The Turtle tank has superior mobility compared to its traditional counterparts, as it has four vehicle treads that can double as legs in order to traverse rough terrain and avoid a variety of manmade or natural obstacles. Onboard offensive weapons constitute a smoothbore cannon, a machine gun turret and twin rocket launchers. Its defensive weapons include a trophy system, which intercepts any incoming projectiles headed for the vehicle and an EMP device that is capable of disabling any enemy electronics within the vicinity of the tank, including unmanned drones.

Power Armor

 * Model 45
 * The Model 45 was the first line of power armors developed by Irontech. While the Model 45 provides users with adequate protections and is cheap to manufacture, it's been criticized for weight and limitation for the user's agility. It also has the habit of burning through energy quickly and with the introduction of the Model 60, was later put out of service and is only in use by the National Guards. Unlike the Akitsukuni power armors, the Model 45 does not come with built in weapons but gives users the strength of a crew, allowing them to handle crew-based weapons with ease.
 * Model 51
 * The second line of power armors developed by Irontech, the Model 51 corrects most of the issues of the Model 45 as it's just as armored as the T-45 but is lighter, more fuel efficient, and has the ability to turn human urine into drinkable water, enhancing the user's survival abilities. Like the Model 45, the 51 does not come with built in weaponry.
 * Model 60
 * The Model 60 is the third line of power armors developed by Irontech. The Model 60 serves to take the goods of the previous models and seek to upgrade them in the Model 60. The Model 60 provides the users with increased protections, has the same amount of fuel efficiency as the Model 51, and enhances the user's survival abilities. It is cheaper to manufacture than the Model 51 and served alongside the 51 as the Commonwealth's service power armor.
 * Model 63 "War Machine"
 * The Model 63 is the first series of power armors developed by Shield Industry. The Model 63 deviates from Irontech design in which they provide the users with built in weapons, surface to space flight, and the same amount of armor as the Model 45. Due to its flight capabilities, the Model 63 can theoretically be used for dogfights against other jets. The Model 63 has been described as the pinnacle of power armor technology but due to its cost, the Model 63 currently sees limited use and are only in service with elite units of the military.

Commonwealth National Guards
The Commonwealth National Guards are the reserve forces of the Commonwealth Army, made up of state militias throughout the Commonwealth. They're one of the first forces to be deployed in terms of invasion from a foreign force to lead civilians into safety and to engage hostile forces. While they're less armored than the regular Army, the CNG are equipped with more conventional weapons and armor and play a valuable role in keeping security in Buyeo.

Commonwealth Navy
The Commonwealth Navy maintains an advanced, well-funded fleet, protecting the seas of Buyeo.

Commonwealth Marine Corps
The Commonwealth Marine Corps are some of the elites of the Armed Forces, equipped with state of the art Model 63 Power Armors equipped with flight capabilities and built-in weaponry, designed to be the pinnacle of power armor technology.