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.

UNTAES concluded its mandate in January 1998, having accomplished its key objective of peacefully reintegrating Eastern Slavonia, Baranja and Western Sirmium into Croatia.

As the result of the fact that the UNTAES became the effective government of the region, from January 1996 onwards local parallel institutions of the Eastern Slavonia, Baranja and Western Syrmia started functioning primarily as the consociational representative institutions of the Serb community in the region.

UNTAES was set up on 15 January 1996 for an initial period of 12 months, with both military and civilian components.

UNTAES conducts elections in the region, marking the first time since the beginning of the conflict that the local population has legitimate representation in the Croatian constitutional and...

联合国东斯拉夫尼亚、巴拉尼亚与西斯雷姆过渡机构（United Nations Transitional Administration for Eastern Slavonia, Baranja and Western Sirmium, UNTAES）为 联合国 在 克罗地亚战争 之后，在1996年到1998年之间，为了使 克罗地亚 境内 塞尔维亚人 控制的东斯拉夫尼亚、巴拉尼亚、西斯雷姆地区和平回归克罗地亚所设立的维和任务。 1995年，克罗地亚发动 闪电行动 (英文)与 风暴行动 (英文)， 塞尔维亚克拉伊纳共和国 国仅剩东边与 塞尔维亚 接邻的东斯拉夫尼亚、巴拉 …

UNTAES je bio jedna od svega nekolicine misija UN-a tipa prijelazne uprave u povijesti ove organizacije. Prijelazne uprave na određeno razdoblje preuzimaju izravnu i najvišu zakonodavnu i izvršnu vlast na području kojim upravljaju stvarajući protektorat pod upravom UN-a.

Implementation of UNTAES began on January 15,1996; the end date was set at Jan uary 15, 1998.

UNTAES, the third successive peacekeeeping mission on Croatian territory, was the one in which the lessons progressively learned by both the United Nations and Croatia brought an appropriate closure to the story. A specific, and perhaps unique, mix of elements contributed to the ultimate success of UNTAES.'

Die United Nations Transitional Administration in Eastern Slavonia, Baranja and Western Sirmium (Abkürzung UNTAES, deutsch Übergangsverwaltung der Vereinten Nationen für Ostslawonien, die Baranja und West-Syrmien) war eine nach dem Kroatienkrieg eingerichtete Übergangsverwaltung durch die Vereinten Nationen, deren Aufgabe die friedliche Wiederei...