Part 1 The operational activities of the OSCE in the Former Yugoslav Republic of Macedonia and Bosnia and Herzegovina: status report on the Former Yugoslav Republic of Macedonia; status report on Bosnia and Herzegovina; the operational role of the OSCE in the field of conflict prevention - an assessment of the spillover monitor mission to Skopje; the operational role of the OSCE in the field of peace-building - the case of Bosnia and Herzegovina. Part 2 The operational activities of the OSCE in Albania, Kosovo and Croatia: status report on Albania; status report on Kosovo; status report on Croatia; a success story - the United Nations authority for Eastern Slavonia. Part 3 The development of regional stability in Southeastern Europe: the OSCE and the Stability Pact for Southeastern Europe; co-operation among international organizations in Southeastern Europe; general remarks; the 1999 Istanbul Charter for European Security - a preliminary assessment. Annexes: report to the Chairman-in-office on the development of the Southeastern Europe regional dimension of the OSCE; Istanbul Summit Declaration; Charter for European Security; Stability Pact for Southeastern Europe.