Advance Wars (Nintendo Cinematic Universe)

Advance Wars is a Japanese anime series.

Season 1
War rages across Cosmo Land and Orange Star seeks to end it.

Black Hole Rising
The Black Hole Army is back for revenge as they attack Marco Land.

Dual Strike
Black Hole has returned under the leadership of a new commander who seeks to give himself eternal life by draining the energy of Omega Land. The Allied Nations struggle to overcome this threat and are eventually joined by several former Black Hole commanding officers in an effort to save the land.

Days of Ruin
Set in a somber, post-apocalyptic world, the game follows Rubinelle's 12th Battalion, a remnant of the country's military. Rubinelle and its rival nation, Lazuria, have been fighting a century-long war, but were interrupted when a global meteor shower bombarded the planet. In the aftermath, the 12th Battalion, also known as Brenner's Wolves, attempts to aid all survivors they encounter, despite the fact that the two battered nations have returned to war. To make matters worse, an incurable disease runs rampant throughout both nations. With everyone distracted by war, a shadowy faction uses the destruction to further its own agenda.

Season 1

 * The nation of Orange Star in at war against the neighboring nation of Blue Moon, with Olaf as the Blue Moon Army commanding officer (CO). Olaf suddenly ordered an invasion of the Orange Star nation and is in battle with the Orange Star Army.
 * Nell, the de facto leader of the Orange Star COs, gives Andy the duty of a tactical advisor for the Orange Star Army.
 * After winning a battle against Green Earth, Andy gets mysteriously accused by Green Earth's CO, Eagle, of committing a treacherous act of aggression against Green Earth.
 * After defeating the Blue Moon troops that invaded the Orange Star country, the Orange Star Army then invade the Blue Moon country, defeating their troops. The Blue Moon COs, Olaf and Grit, are revealed to be COs who both used to work for the Orange Star Army, but switched to Blue Moon.
 * When the Orange Star Army's intention was to just pass through the other two countries, Green Earth and Yellow Comet, the countries' COs like Kanbei of Yellow Comet assume a threat of an invasion and declare battles against the Orange Star Army in their land.
 * Later on, Green Earth CO Drake tells Eagle that the Orange Star Army didn't attack Green Earth, saying that "This entire conflict has been orchestrated from the beginning."
 * Meanwhile, Yellow Comet CO Sonja and Grit try to discover the person who is really behind the attacks.
 * When Eagle meets Andy again, Eagle again accuses Andy of attacking Green Earth, to which the Orange Star COs eventually convince Eagle that it wasn't Andy who attacked Green Earth. This explains why the three nations have been declaring battles against Orange Star, as they thought Andy attacked them first.
 * When Eagle meets Sonja, Sonja also tells Eagle that Andy wasn't behind the attacks, saying it was someone else, and goes with her to see what she discovered. It is revealed that the enigmatic Black Hole Army, under the command of Sturm, is the true enemy. Using a CO doppelganger clone of Andy, Sturm stirred up war among the four countries in order to confuse, weaken, and eventually conquer them.
 * Once this is revealed, the four countries unite to drive Black Hole out of their land, the Cosmo Land, with COs automatically chosen depending on the paths the player took during the game.

Black Hole Rising

 * While the Allied Nations were still recovering from the war in Cosmo Land, the Black Hole Army had already recovered and has decided to launch a large-scale invasion on Macro Land. Along with the original Black Hole army's commanding officers (COs), four new COs were recruited, under the command of Sturm:
 * Flak: Black Hole's strongman in charge of invading Orange Star.
 * Lash: A girl genius having invented most of Black Hole's technologies, invading Blue Moon.
 * Adder: A narcissic commander in charge of invading Yellow Comet.
 * Hawke: Black Hole's second-in-command and Sturm's most trusted ally.
 * Sturm orders each Black Hole CO to invade and capture each of the four continents controlled by the four other armies from the original game:
 * Orange Star by Flak.
 * Blue Moon by Lash.
 * Yellow Comet by Adder
 * Green Earth by Hawke.
 * Lash also invented several new war weapons like the Black Cannon and the Mini Cannons that were to be put to use in this invasion. The four allied armies must now work together to drive Black Hole out of their world once and for all.
 * Once the Black Hole troops are driven from the Allied Nations' continents, their COs convene in Black Hole territory, near Black Hole's base of operations. Here they fight Sturm, the mastermind behind the invasion.
 * The final battle takes place in front of the Death Ray, a powerful new weapon guarding the entrance to a missile, which, if not subdued in time, would destroy half of Wars World.
 * The Death Ray is eventually destroyed by the COs of the Allied Nations, who manage to disarm the missile and corner Sturm.
 * In an act of desperation, Sturm attempts to blow up the base and inflict damage on Wars World by self-destructing the missile. Andy attempts to stop Sturm to no avail. However, in a surprising turn of events, Hawke, second in command to Sturm, betrays his leader by killing him with Black Storm before the self-destruct is triggered.
 * Hawke takes over as leader of Black Hole, and along with Flak, Lash, and Adder, leaves Macro Land with the few troops he has left.

Dual Strike

 * The Black Hole Army has returned under a new commander, Von Bolt. He is accompanied by his Bolt Guard: Jugger, Koal, and Kindle, along with Hawke and Lash from the original Black Hole Army.
 * Using Lash's new Black Obelisks, Von Bolt is draining Omega Land of its energy to give him eternal life, and is also starting to use this power to produce a bio-weapon named Oozium 238, a strange slime-based monster that devours anything in its path. However, Hawke notices the energy draining (which also is turning Omega Land into a desert) and questions its use.
 * After uncovering Von Bolt's plot, Hawke is betrayed and Von Bolt attempts to swarm Hawke and Lash with Oozium 238.
 * After the Allied Nations’ COs save Hawke and Lash, the COs, along with Hawke and Lash, begin to turn the tide against the Black Hole Army.
 * Both Hawke and Lash provide valuable intelligence of the Black Hole weaponry and its plans for Omega Land.
 * With this information, the Allied Nations slowly corner the Black Hole Army, leading to a battle in the middle of the Crimson Sea.
 * After destroying the last Black Obelisk, the Allied Nations proceed to the final battle where they fight Von Bolt and a giant oozium known as the Grand Bolt.
 * After destroying the Grand Bolt, Hawke destroys Von Bolt's life support chair, supposedly causing Von Bolt (and presumably Hawke) to die in the aftermath.
 * With the Black Obelisks gone, Omega Land begins returning to normal. Hawke is revealed to have stolen Von Bolt's chair and escaped, leaving Von Bolt either dead or barely alive. With the power in Von Bolt's chair Hawke revives all the land.

Days of Ruin

 * Almost 90% of humanity has been killed off following devastating meteor strikes which have destroyed much of civilization and caused a massive dust cloud to blot out the sun, preventing photosynthesis and thereby preventing the growing of crops.
 * Scattered survivors pick through the wreckage, and the remnants of several military superpowers patrol the ravaged landscape, some factions protecting the innocent while the others prey upon them.
 * Following the disaster, which obliterated much of the warring nations of Rubinelle and Lazuria, a young cadet from the Rubinelle military academy named Will escapes the ruins of the academy's mess hall and is confronted by The Beast, a former sergeant gone rogue who leads a small band of raiders.
 * Will is rescued by Brenner and Lin of Rubinelle's 12th Battalion (nicknamed "Brenner's Wolves"), and takes on the group's cause of saving as many survivors of the meteor strikes as possible.
 * During a search, Will discovers a mysterious amnesiac who does not remember her own name, but somehow knows detailed military information. Will later names her Isabella, and she becomes a vital part of the battalion as they put an end to the Beast's reign of terror.
 * One year after the meteor strikes, the 12th Battalion comes into contact with the New Rubinelle Army, and learns of the war raging between the Lazurian Army and the NRA. Brenner reluctantly sides with Greyfield, leader of the NRA, and advances on the Lazurian force, eventually defeating them at Fort Lazuria.
 * Distraught by the ruthless execution of the Lazurian commander, Forsythe, Brenner and the 12th Battalion break the Lazurian prisoners out of an NRA internment camp before they can be executed. While the group escapes, Brenner stays behind and hides in an abandoned city to buy them some time.
 * An infuriated Greyfield orders the use of a new weapon which completely destroys the city, killing Brenner and the NRA troops searching for him. Lin later leads a force against Greyfield, preventing the launch of a wave of deadly Caulder missiles and defeating the NRA once and for all. In the process, Lin personally shoots and kills Greyfield, avenging Brenner's death.
 * The 12th Battalion is unexpectedly attacked soon after by Intelligent Defense Systems, a private military contractor that had secretly supported first the Lazurians, then the NRA by supplying them with weapons of mass destruction. Dr. Caulder, leader of IDS, had taken advantage of the world's devastation to carry out horrific biological and psychological experiments that he would have been unable to undertake otherwise, such as creating and spreading a terrible new disease called the Creeper, which causes flowers to bloom from infected individuals, for the sole purpose of studying the survivor's reactions.
 * Despite numerous demoralizing attacks by IDS and its massive bomber, The Great Owl, the battalion survives and infiltrates and brings down The Great Owl, eventually pursuing Caulder to his main laboratory and fortress, The Nest.
 * In the end, Caulder is killed in the destruction of his lab, and the war is finally brought to an end.
 * One year later, the village of New Hope, founded by the 12th Battalion after the conflict, begins to flourish in the new-found peace. The sun is seen rising above the nearby hills for the first time since the meteor strikes, giving hope of a brighter future.

Season 1

 * Based on Advance Wars.

Black Hole Rising

 * Based on Advance Wars 2: Black Hole Rising.

Dual Strike

 * Based on Advance Wars: Dual Strike.

Days of Ruin

 * Based on Advance Wars: Days of Ruin.