What happened October 1990 AD in undefined

In the 1980s, a group of 500 Rwandan refugees in Uganda, led by Fred Rwigyema, fought with the rebel National Resistance Army (NRA) in the Ugandan Bush War, which saw Yoweri Museveni overthrow Milton Obote. These soldiers remained in the Ugandan army following Museveni's inauguration as Ugandan president, but simultaneously began planning an invasion of Rwanda through a covert network within the army's ranks. In October 1990, Rwigyema led a force of over 4,000 rebels from Uganda, advancing 60 km (37 mi) into Rwanda under the banner of the Rwandan Patriotic Front (RPF). Rwigyema was killed on the third day of the attack, and France and Zaire deployed forces in support of the Rwandan army, allowing them to repel the invasion.

The first post-Cold War expansion of NATO came with German reunification on 3 October 1990, when the former East Germany became part of the Federal Republic of Germany and the alliance.

The Macintosh Classic is a personal computer designed, manufactured and sold by Apple Computer, Inc. from October 1990 to September 1992. It was the first Macintosh to sell for less than US$1,000.

By 17 October 1990, a peace agreement formally ending the insurgency was ratified at Wisma Bapa Malaysia in the state capital Kuching. Shortly afterwards, the last remaining NKCP operatives led by Ang Cho Teng surrendered. These developments ended the communist insurgency in Sarawak.

In October 1990, Hepburn went to Vietnam, in an effort to collaborate with the government for national UNICEF-supported immunization and clean water programmes.

In October 1990, under pressure from senior ministers and despite Thatcher's deep reservations, the UK joined the European Exchange Rate Mechanism (ERM), with the pound sterling pegged to the deutschmark.