1990s

1990s:

Solidus Snake and Raiden participate in the Liberian Civil War. Raiden becomes an outstanding child soldier in Solidus's Small Boy Unit, earning nicknames such as "White Devil" and "Jack the Ripper."

1990:

In Nicaragua, the Contras agree to negotiations with the FSLN, putting an end to the conflict.

The use of conventional armed forces stabilises between East and West, and negotiations over mutual reduction is approved by both.

After losing her parents, Nastasha Romanenko moves to the USA.

Frank Jaeger is awarded with the title of "Fox," the highest ranking in FOXHOUND.

June 1st: At the Washington Summit, US President George Bush and Mikhail Gorbachev sign the US-Soviet Agreement on Destruction and Non-Production of CW and on Measures to Facilitate the Multilateral Chemical Weapons Convention (CWC).

August 2nd: Iraq invades Kuwait, triggering the Persian Gulf War.

Solid Snake joins the US Army and, as a member of the Green Berets, is sent on a mission to infiltrate western Iraq during the Gulf War.

Liquid Snake joins the SAS and, as a member of the British SAS, is also sent into the Gulf War to destroy mobile SCUD missile launchers. During the mission he becomes a prisoner of war and is declared missing in action.

October 3rd: East and West Germany are reunited.

November 19th: CFE (Treaty on Conventional Forces in Europe) is signed.

1991:

January 17th to February 27th: UN-authorized coalition forces launch Operation Desert Storm against Iraq during the Gulf War. The US army injects its troops with "Soldier Genes", identified from the study of Big Boss's DNA. The side effects of these injections are disguised as the Gulf War Syndrome.

January 22nd - 27th: The Special Air Service mission to set up an observation post in the main supply route between Baghdad and northwestern Iraq and possibly destroy Iraqi Scud missile launchers, Bravo Two Zero, commences, but results in failure and the capture of the entire eight-man patrol squad.

May 21st: The Eritrean War of Independence ends.

December 8th: The Soviet Union collapses and the Commonwealth of Independent States (CIS) rises in its place.

Regulation talks over SDI come to dissatisfaction.

LNF (Long-range Nuclear Force) total abandonment commences.

North and South talks are held.

Output of high-powered lasers are improved.

1992:

Nastasha Romanenko joins the DIA, where she meets Richard Ames, her future husband.

March 31st: The USS Missouri is decommissioned for the second time, where it is placed in a museum in Pearl Harbor, Hawaii.

Conventional arms and war machines are reduced across Europe.

The average ratio of GNP per population in Asian Newly Industrialized Countries (NICs) to the world average exceeds 10%.

Development of brain bombs.

Experiment of coil gun is successful.

The Mozambican Civil War ends

1993:

January 3rd: The US and Russia sign the START-2 to reduce the number of deployed strategic nuclear warheads to 3,000-3,500 by the end of 2007.

September 21st to October 4th: The 1993 Russian constitutional crisis. Vulcan Raven, along other members of Vympel, are demoted. Vulcan Raven decides to leave Russia and become a mercenary. He eventually joins Outer Heaven.

SLCM, Sea (surface or underwater) Launched Cruising Missile Regulation Treaty, is signed.

Development of the MBT Goliath begins.

Experiments on rail-velocity guns begin.

1994:

After years in captivity, Liquid Snake is freed by the US government, and returns to the United States.

Postponement of plutonium production for military purposes commences. Krypton-85 density in the atmospheres of America and Russia begin to stabilize.

The US Army restarts the development of mortar weaponry.

Laser weapon experiments begin outside the Earth’s atmosphere.

1995:

Solid Snake joins FOXHOUND, unaware that he is a clone of the squadron's commander, Big Boss.

Average ratio of Japanese GNP per population to world average exceeds 60%.

NASA develops an experimental walking tank for planet exploration.

Metal Gear TX-55 is developed by Dr. Drago Pettrovich Madnar in Outer Heaven.

The Outer Heaven Uprising begins.

Operation Intrude N312: The United States brokers FOXHOUND to infiltrate Outer Heaven. Big Boss, the commander of both FOXHOUND and, secretly Outer Heaven, sends his most trusted soldier, Gray Fox, to infiltrate Outer Heaven as a military gesture. Gray Fox is captured by Outer Heaven forces, although not before sending a report of his reconnaissance duties back to FOXHOUND.

Operation Intrude N313: FOXHOUND is forced to send in Solid Snake, a rookie agent, in a follow-up mission to Outer Heaven. Snake rescues Gray Fox, defeats Big Boss, and destroys Metal Gear TX-55. Solid Snake ends up quitting the unit shortly thereafter.

The Outer Heaven Uprising ends. NATO commences an air raid that leaves many war orphans and refugees dead, regardless of their ties to Outer Heaven or not, and the surviving natives are saved by Big Boss.

Roy Campbell, FOXHOUND's second-in-command, is appointed commander-in-chief. The unit's code name system is discarded.

Nastasha Romanenko leaves the DIA to become a freelance analyst, and starts writing for assorted information and US Naval magazines.

1996:

January 26th: The US ratifies the START-2.

May: Admiral Boorda, the Chief of Naval Operations in charge of the Arsenal Ship Project, commits suicide/is murdered before the scheduled Phase 2 tests, resulting in the project's cancellation.

July 5th: Scientists in Scotland successfully manage to clone the somatic cell of a sheep.

August: Nastasha Romanenko attends the Canberra Commission, the world's first nationally hosted nuclear weapon abolition proposal committee.

Nastasha Romanenko joins NEST (Nuclear Emergency Search Team) as a military and nuclear analyst.

August: The Liberian Civil War ends.

September 10th: The UN adopts the Comprehensive Nuclear Test Ban Treaty.

LSI (Large Scale Integration) production using resography and SOR begins.

The movie Escape from L.A. is released.

Solid Snake begins suffering from nightmares relating to his experiences in the Outer Heaven Uprising.

1997:

SNF (Short-range Nuclear Force) total abandonment is completed.

An uprising takes place in Central Asia with various international forces, including the CIS, attempting to settle the unrest. They are repeatedly defeated by a band of mercenaries gathered from around the world, during a time known as the Mercenary War. As a result, a democratic military regime, named Zanzibar Land, declares its independence.

The rapid reproduction of nuclear power plants advances greatly.

1998:

Chemical Weapons are abandoned worldwide.

The Third Oil Shock begins.

Super LSI circuits with 100 M bit class memory become available.

Metal Gear D is developed in Zanzibar Land.

May: The Eritrean-Ethiopian War began.

October: The Third Chadian Civil War began.

1999:

American and Russian nuclear disposal sites are raided by Zanzibar Land forces, utilizing Metal Gear D.

Development of Metal Gear G begins in Zanzibar Land.

Czech biologist Dr. Kio Marv creates "OILIX", a micro-organism that can produce high quality crude oil.

Zanzibar Land Disturbance: Zanzibar Land succeeds in becoming one of the few remaining nuclear powers in the world, and begins invading neighboring countries at will.

December 24th: Solid Snake infiltrates Zanzibar Land, defeats Gray Fox and Big Boss, and destroys Metal Gear D. Kio Marv is murdered by Dr. Madnar, who then attempts to kill Snake, before Snake defeats him. Snake vanishes and decides to live in the solitude of Alaska. Gray Fox's body is recovered by FOXHOUND medical chief Dr. Clark for gene therapy experiments. The immolated remains of Big Boss are retrieved by The Patriots who induce him into a coma using nanomachines.

EVA and Ocelot plot to destroy The Patriots and to revive Big Boss.