The 1999 Istanbul Summit was the 6th OSCE summit

Summit (meeting)

A summit meeting is a meeting of heads of state or government, usually with considerable media exposure, tight security and a prearranged agenda.Notable summit meetings include those of Franklin D...

and was held in Istanbul

Istanbul

Istanbul , historically known as Byzantium and Constantinople , is the largest city of Turkey. Istanbul metropolitan province had 13.26 million people living in it as of December, 2010, which is 18% of Turkey's population and the 3rd largest metropolitan area in Europe after London and...

, Turkey

Turkey

Turkey , known officially as the Republic of Turkey , is a Eurasian country located in Western Asia and in East Thrace in Southeastern Europe...

 from November 18 until November 19, resulting in the adoption of the Istanbul Summit Declaration and the signing of the Charter for European Security. Also in Istanbul, 30 OSCE states signed the Agreement on the Adapted Conventional Armed Forces in Europe Treaty

Adapted Conventional Armed Forces in Europe Treaty

The Adapted Conventional Armed Forces in Europe Treaty is a post–Cold War adaptation of the Treaty on Conventional Armed Forces in Europe , signed on November 19, 1999 during the OSCE's 1999 Istanbul summit. The main difference with the earlier treaty is that the troop ceilings on a bloc-to-bloc...

, which amended the 1990 Treaty on Conventional Armed Forces in Europe

Treaty on Conventional Armed Forces in Europe

The original Treaty on Conventional Armed Forces in Europe was negotiated and concluded during the last years of the Cold War and established comprehensive limits on key categories of conventional military equipment in Europe and mandated the destruction of excess weaponry...

 to reflect the changes since the end of the Cold War

Cold War

The Cold War was the continuing state from roughly 1946 to 1991 of political conflict, military tension, proxy wars, and economic competition between the Communist World—primarily the Soviet Union and its satellite states and allies—and the powers of the Western world, primarily the United States...

. There was also verbal clash between Russia and the West over NATO intervention in Kosovo Conflict and beginning of Second Chechen War

Second Chechen War

The Second Chechen War, in a later phase better known as the War in the North Caucasus, was launched by the Russian Federation starting 26 August 1999, in response to the Invasion of Dagestan by the Islamic International Peacekeeping Brigade ....

.