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In the near future, Earth is at war with aliens called Worms. The war leaves the population of Earth decimated, with young men the main casualties. The Worms were beaten back but their re-emergence heralds the creation of a mecha unit called the Sonic Divers, piloted by 3 young girls to counter this threat. (Source: ANN)

In A.G. 151, the space pirates "Bisidian" have taken advantage of war to extend their power. The Bisidian are associated with Ract Elfamel who supports them in finding the treasure. Once they have located the treasure, Captain Angrazzo ordered his son, Wivik Lambro, to come up a strategy to retrieve the treasure Bisidian has been looking for for some time, but when he infiltrates a certain asteroid in pursuit, who should be lying in wait but federation veteran Largan Drace's platoon! (Source: Gundam Wikia)

Universal Century, October 0079. Kurt Blatt volunteered for the Principality of Zeon forces and with the sergeant Alexei were assigned to the engineering battalion. They believed that Zeon would win but have just been through the Battle Of Odessa. (Source: Gundam Wikia)

In July 2116, the Southeast Asia Union (SEAUn) and the Japanese government begin to export the Sibyl System to the coastal town of Shambala Float during a civil war as an experiment in spreading the system throughout the world. Under Sibyl's rule, Shambala Float achieves temporary peace and safety, but when SEAUn sends terrorists to Japan, now able to slip through the Sibyl System and attack Japan from within, the shadow of a certain man falls on the incident and Inspector Akane Tsunemori must lead her team to Shambala Float to investigate. (Source: Psycho-Pass Wiki)

Rising from the ashes, a fallen noblewoman stands to save humanity! "Countess Romelia. I'm breaking off our engagement," declared Prince Henri, right after defeating the Demon King. By the prince's side were Saint Elizabeth, the sage Ekaterina of the Unreturning Forest, and the Eastern swordswoman Lu Hime, all pointing accusatory fingers at her as "useless." But the prince and his comrades didn't know something. They didn't know that Romelia possessed a miraculous power called "Grace," which bestows good luck. Having lost her fiancé and been abandoned by her friends, Romelia did not break. Her homeland was still infested with the Demon King's forces, and many people were held captive by the demon race as slaves. To rescue them, Romelia embarked on a mission, encountering numerous difficulties along the way. First, she didn't have an army. There were no healers to tend to injuries, and she lacked the funds. But Romelia was determined to solve every problem aggressively. "No army? Let's intimidate local lords and take their forts." "No healers? Let's negotiate with the church for their assistance." "No money? Let's negotiate with merchants to secure funds." "Newly recruited soldiers are inexperienced? Let's have them gain experience by hunting monsters." And so, Romelia, along with her loyal followers, marches into battle! (Source: Shogakukan, translated)

An alternate history in which JSDF fights the Soviet military when it launches an attack on Tokyo.

Frederik Brown is a mobile suit trainee in one of Zeon's schools, but always had a hard time keeping up with everyone. Ten months after training hard, he's thrust into actual combat for the first time together with Zeon's declaration of war. He becomes witness to the horrors and atrocities associated with war first hand as he fights to stay alive. (Source: zeonic-republic.net)

Takagami Riu graduated from middle school. All of his dreams as a normal student had vanished - he was assigned to become a student soldier "Gakuhei" and filled his life with trainings. After the hard training session, Riu was called by instructor and appointed as a "BodyGuard," demanded from a magician officer. "Why it has to be me?" Riu asked this question to himself, and what awaits for him was a cute girl that dressed weird.

The Highland and the City-State have signed a peace treaty ending their war, but one night, on the camp of Highland's army of young men called the Unicorn Brigade, a massacre occurred, with only Riou and Jowy as the only survivors. They discover that the one behind this was the Highland prince, Luca Blight, and now, they were branded traitors of their own country...

Chronicles the lives of four prominent pilots of the Principality of Zeon before and during the One Year War. (Source: Gundam Wiki)

The story of Kidou Senshi Gundam: Operation:Troy opens with the space colonists' brutal battle for independence from The Earth Federation. Advanced ECM has rendered range sensors and communications useless, resulting in the rise of new war machines called mobile suits. These ultimate instruments of destruction, capable of metal-clashing hand-to-hand combat, completely redefine modern warfare. (Source: Gundam Wikia)

1945, Tokushima. Yodono's a cameraman visiting the base to photograph the special unit pilots. He's photographing them with only one motif in mind: "Young and admirable soldiers." During his time seeking to photograph that, one soldier in particular catches his eye. Shizuma Tanaka, flight petty officer first class, always smiles when looking through the lens. One night, Shizuma comes to talk with Yodono. Conversations progress beyond the camera, and Shizuma directly asks, "Would you try doing this to me?" The two know that they can't be doing this, but continue to feel themselves draw closer to one another in this first chapter to a series of various characters in various places, navigating the complicated space of the military during World War 2. (Source: Shinchosha)

The manga follows Akira Yamamoto, the steely red-eyed pilot from Mars. After Akira loses her family, she joins the Yamato crew and goes on a journey, finding a place where she can belong. (Source: ANN)

Johnathan Perkins, son of Vietnam War hero "Perky" Perkins, is an U.S. exchange officer serving in British Special Air Service (SAS). He and Sergei, a Russian Spetsnaz exchange officer, participate covert SAS actions behind enemy lines alongside British soldiers in Operation Desert Storm. (Source: ANN)

By the will of a whimsical goddess, the seventy-second Demon King has been reincarnated to rule alongside a chaotic mixture of humans and heroes in another world. The newly minted Demon King Astaroth has been tasked with overseeing the reconstruction of this strange, new land, and as a realist, he will use rarely seen resourcefulness and tactics to reshape the fate of all who live under his reign! (Source: Yen Press)

Slaine is a humble, provincial commoner in the small Kingdom of Hasenvalia... Or so he thinks until the day the entire royal family is wiped out in a palace fire and Slaine comes to learn he's really the king's illegitimate son. It now falls on him to succeed the throne. Despite his lack of knowledge and experience, Slaine's natural wits and dedication—plus the support of his aide-de-camp, Monica—allow him to excel against all odds. The future for him and the kingdom looks bright—right up until the eve of his coronation, when the great Empire of Galed declares war against Hasenvalia. Faced with such a frighteningly powerful foe, Slaine is forced to make a choice between fleeing into political exile or resisting invasion to the bitter end. Caught between the conflicting agendas of neighboring nations, this boy from a backwater town must learn how to grow into his crown. Witness the birth of a king! (Source: J-Novel Club)

Humanity is under siege. Strange, hostile beings known only as pillars are stripping away the very life force of the Earth, turning vast tracts of the planet into barren wasteland. The only ones who can stand in their way are the Valkyries, the chosen of Odin himself who fight with his blessing in divine machines that arc gracefully through the air, leading the countercharge of the human race. Even with their support, the fighting is desperate, and hope is hard to come by on the European front. Rusalka is determined to do everything she can to change that as one of the chosen warriors tasked with retaking the skies and bringing humanity back from the brink of extinction! (Source: Yen Press)

Many military leaders throughout history, including Napoleon, have been found using the teachings in the ancient Chinese literature called the Sonshi. The Sonshi, written by the leader of the Son family, extensively covers topics ranging from troop movement to forging alliances. Bin is a young adult in 360BC who is a criminal and social outcast. His face was tattooed with an unmistakable mark that will prevent him from ever working a decent job and his knee caps were cut off so that he will never walk again. He is the fifth generation of the Sons and he is said to be just as cunning as the original writer of the Sonshi. This story is about Bin, a legendary military tactician that changed the history of China. (Source: MU)

Kaname Maeda, a former classroom teacher, travels to a war-torn country in order to meet a student to whom he's been teaching Japanese online. Amongst the fighting and confusion, he meets the leader of an anti-government guerrilla organization, John, and they end up helping each another. Why is it that John, who has placed himself on the front lines, seems to age and rejuvenate every time Maeda looks at him? A story of life and death on the battlefield. (Source: Akaneshinsha, translated)

Universal Century, Decemeber 0079. After the failure to capture the Federation HQ at Jaburo, the remaining Zeon forces on Earth conduct a retreat. On their way back to space to reunite with the rest of Zeon's forces in space, a Federation unit consisting of three red giants appear. (Source: Kadokawa, translated)

The story takes place in U.C. 0084 in the form of a video documentary. It is based on interviews with soldiers and officers of the Earth Federation and the Principality of Zeon who participated in the final battle of A Baoa Qu during the end of the One Year War in U.C. 0079. (Source: Gundam Wikia)