History

Stand Alone Complex 2nd GIG uncovers a significant amount of back-story that was only vaguely talked about during the first season, including information about the last world wars. Between the turn of the century and 2032, there were two major conflicts that changed world politics. The first being nuclear World War III, and the other being non-nuclear World War IV, also known as the Second Vietnam War. The increase in independent states and sovereign regions grew from the chaos of the last 30 years. The planet remains more divided than ever, and several locations exist on the planet where sovereignty falls into question; where no one is really sure who owns or governs what.

1991 Kuril Islands

* Russia returned 4 Kuril Islands (including Etorufu) to Japan.

2000 - 2015 World War III

* World War III was a nuclear war, occurring some time between 2000 and 2015. While very little is still revealed about the events that occurred to cause the war, evidence shows that the war started from a series of nuclear exchanges across Eurasia.
* Nuclear Bombing of Tokyo - The seat of government was temporarily transferred to Niihama (Kobe) before permanent relocation to Fukuoka, Kyūshū. Central Tokyo was submerged under water.
* Nuclear Bombing of Okinawa

2015 The Japanese Miracle

* Japan remained passive while the war went on, until the city of Tokyo was destroyed by a nuclear blast, and even then, only became involved with the war in the background, never committing JSDF forces to actual combat. By the end of the war, several of the world's powers had fallen. Virtually the only unaffected power left in the world was Japan, because the damage from the war was minimized by the Japanese Miracle, a swarm of micromachines capable of removing radiation from the environment. The arrival of the Japanese Miracle is said to have contributed to America's waning power; since nuclear fallout could now be mitigated, American nuclear weapons were no longer as powerful.

The Rise of the American Empire

* After World War III ended, America was divided into American Empire, Russo-American Alliance and United States of America. The American Empire had become an imperialist government, in an attempt to regain world power by conquering new areas in North and South America. Due to a battered economy and weak political position, the American Empire entered a security pact with Japan. The pact reaffirms Article 9 of the Japanese Constitution in prohibiting Japan from both deploying its army overseas and possessing nuclear weapons.

2015 - 2024? World War IV (Second Vietnam War)

* The Second Vietnam War, as its name suggests, was centered around the Siam Peninsula. However, while the conflict started in the region around Vietnam, countries around the world were still reeling in internal conflict after the last World War. By the summer of 2020, Europe and Asia were deadlocked in a futile war of attrition.
* Japan had moved toward punitive isolationist policies while internally it found a strange political balance after World War III.
* Recapturing of Nemuro. The Umibozu became known locally and internationally for their tactics and their skills in the successful recapture of the port city.

2020 Mexican War & South American Campaign

* The American Empire called for the deployment of UN troops, under the pretext of overthrowing the corrupt Mexican and other South American governments. Through carpet-bombing, mechanized troops, and wartime atrocities (see 1st GIG, episode JUNGLE CRUISE), the combined UN forces moved through the regions to sweep up the remaining guerrillas.
* During this time, hundreds of mercenary groups surface throughout the war-torn Central and South American regions, populated by the remnants of armies once connected to nations that no longer exist. Also during this time, there were several unofficial operations that involved Japanese UN troops.

2024 The Peninsular War (Second Korean War)

* Civil war broke out in the peninsula leading to unification.
* American Empire called for troop deployment under the name of UN to stabilize fighting within the peninsula.
* Japan deployed UN peacekeepers in the relatively safe area of Shinuiju.
* The remaining soldiers of the People's Army surrendered to the UN forces.

2024 The Laughing Man Incident

2029 Formation of Section 9

2031 Section 9 Officially Disbanded

* Section 9 Disbanded
* Formation of Kayabuki Cabinet after general election
* Yakushima Arrested
* June 9 - Tachikoma AI satellite launched


taken from wikipedia