Operation Storm in the context of "Croatia–United States relations"

The United Nations Confidence Restoration Operation in Croatia, commonly abbreviated UNCRO, was a United Nations (UN) peacekeeping mission in Croatia. It was established under Chapter VII of the United Nations Charter and approved by the UN Security Council (UNSC) Resolution 981 on 31 March 1995. UNCRO inherited personnel and infrastructure from the United Nations Protection Force (UNPROFOR). Its command was located in Zagreb; the peacekeeping troops were deployed in four sectors named North, South, East, and West. Twenty different countries contributed troops to the mission.

UNCRO started with more than 15,000 troops taken over from UNPROFOR; the personnel count was gradually reduced to approximately 7,000 by the end of the mission in early 1996. South Korean diplomat Byung Suk Min was the civilian head of the mission, while the military commanders of UNCRO were Generals Raymond Crabbe and Eid Kamal Al-Rodan. UNCRO was linked with UNPROFOR, which remained active in Bosnia and Herzegovina, and with the United Nations Preventive Deployment Force (UNPREDEP), which was deployed in the Republic of Macedonia. The mission was terminated on 15 January 1996 by UNSC Resolution 1025, passed on 30 November 1995. Sixteen UNCRO troops were killed, including four during Operation Storm in August 1995.

The Republic of Serbian Krajina or Serb Republic of Krajina (Serbian: Република Српска Крајина / Republika Srpska Krajina, pronounced [rɛpǔblika sr̩̂pskaː krâjina]; abbr. РСК / RSK), known as the Serbian Krajina (Српска Крајина / Srpska Krajina) or simply Krajina (Крајина), was an unrecognized geopolitical entity and a self-proclaimed Serb quasi-state, a territory within the newly independent Republic of Croatia (formerly part of Socialist Yugoslavia), which it defied, and which was active during the Croatian War of Independence (1991–95). It was not recognized internationally. The name Krajina ("Frontier") was adopted from the historical Military Frontier of the Habsburg monarchy (Austria-Hungary), which had a substantial Serb population and existed up to the late 19th century. The RSK government waged a war for ethnic Serb independence from Croatia and unification with the Federal Republic of Yugoslavia and Republika Srpska (in Bosnia and Herzegovina).

The government of Krajina had de facto control over central parts of the territory while control of the outskirts changed with the successes and failures of its military activities. The territory was legally protected by the United Nations Protection Force (UNPROFOR). Its main portion was overrun by Croatian forces in 1995 and the Republic of Serbian Krajina was ultimately disbanded as a result. A rump remained in eastern Slavonia under UNTAES administration until its peaceful reintegration into Croatia in 1998 under the Erdut Agreement.

The United Nations Transitional Administration for Eastern Slavonia, Baranja and Western Sirmium (UNTAES) was a UN peacebuilding transitional administration in Eastern Slavonia, Baranja and Western Syrmia, in the eastern parts of Croatia (multicultural Danube river region). The transitional administration lasted between 1996 and 1998. The transitional administration was formally established by the United Nations Security Council Resolution 1037 of January 15, 1996. The transitional administration was envisaged and invited in the November 1995 Erdut Agreement between the Croatian Government and the representatives of the local Serb community in the region. At the time of UNTAES deployment the region already hosted another traditional type UN peacekeeping mission known as the UNCRO. While the region was covered under the UNCRO's sector east (sector led by Russian and Belgian forces), the whole UNCRO mission was brought into question by the Operation Storm escalation of hostilities.

UNTAES is only the third UN peacekeeping mission in history (after UNTEA in Western New Guinea and UNTAC in Cambodia) where the UN assumed direct and high executive powers in the territory of concern. Via UNTAES, the United Nations temporarily took the role of governance in the region by creating a UN protectorate. At the end of the UNTAES deployment an additional monitoring support mission was provided for the region under the name of the United Nations Civilian Police Support Group.