July 1991
Conference
Brioni Agreement signed
The Brioni Agreement was signed, putting an end to hostilities in Slovenia during the Balkan crisis in the 1990s.
Conference
First Emergency Meeting of the CSO on consultation and co-operation in an urgent situation regarding Yugoslavia
At the First Emergency Meeting of the Committee of Senior Officials, participating States adopted an urgent appeal for a ceasefire in Yugoslavia, stressing the importance of an immediate and complete cessation of hostilities by all parties…

Conference
Meeting of Experts on National Minorities
As called for in the Charter of Paris for a New Europe, representatives of CSCE participating States discussed the issues and rights of national minorities in Geneva from 1 to 19 July.
June 1991
Ministerial council
1st Meeting of the CSCE Council of Ministers
The Ministerial Council is the central decision-making and governing body of the OSCE. The meeting, held annually, provides the Foreign Ministers of the 57 OSCE participating States an opportunity to review and assess the Organization’s…
January 1991
Conference
La Valetta Meeting of Experts on Peaceful Settlement of Disputes
This meeting is part of the series of meetings on peaceful settlement of disputes (Montreux 1978, Athens 1984, La Valletta 1991, Geneva 1992)
November 1990

Conference
Heads of State sign Treaty on Conventional Armed Forces in Europe
Regarded as the cornerstone of security in the region, the Treaty on Conventional Armed Forces in Europe (CFE Treaty) is a legally-binding agreement and the product of five years of negotiations.

Summit
Paris Summit 1990
Heads of State or Government met for the second CSCE Summit in Paris in November 1990.
Conference
Negotiations on Confidence- and Security-Building Measures produces Vienna Document 1990
The Third CSCE Follow-Up Meeting called for further negotiations on Confidence- and Security-Building Measures. Held in parallel with negotiations on conventional armed forces in Europe, they yielded the Vienna Document 1990 of the…
October 1990
Ministerial council
Meeting of Foreign Ministers, New York
September 1990
Conference
1990 CSCE Meeting on the Mediterranean
The 1990 CSCE Meeting on the Mediterranean took place from 24 September to 19 October in Palma de Mallorca, where participating States reiterated their conviction that security in Europe and the Mediterranean were closely linked.
June 1990

Conference
End of the Copenhagen Meeting of the Conference on the Human Dimension of the CSCE
At the conclusion of the Copenhagen Meeting on the Conference on the Human Dimension, participating States signed the Copenhagen Document, which remains the most important source of OSCE commitments in the human dimension.
November 1989
Conference
Berlin Wall begins to crumble
East German official Guenter Schabowski announced at a news conference that travel documents would no longer be necessary for East Germans wanting to travel west.
October 1989

Conference
Sofia Meeting on the Protection of the Environment
The Meeting on the Protection of the Environment produced a major report, which, with the report from the Conference on Economic Co-operation in Europe (Bonn, 19 March to 11 April 1990), laid the foundations for the economic and…
November 1986

Conference
CSCE Third Follow-up Meeting begins in Vienna
From 4 November 1986 to 19 January 1989, Vienna hosted the Third Follow-up Meeting of the CSCE. The process of détente was examined, setting the stage for in-depth discussions on the principles outlined in the Helsinki Final Act.
August 1986
Conference
Reagan proclaims Helsinki Human Rights Day
United States President Ronald Reagan issued a proclamation on the 11th anniversary of the CSCE to reassert his country's commitment to the Helsinki Accords.
October 1985

Conference
CSCE Cultural Forum held in Budapest
At the invitation of the Government of Hungary, the Cultural Forum took place in Budapest from 15 October to 25 November 1985. It was the first CSCE meeting held in a Warsaw Pact state and examined the cultural provisions of the Final Act.