সঠিক উত্তর হচ্ছে: নভেম্বর, ১৯৫৬
ব্যাখ্যা: First Emergency Special Session of the General Assembly (GA) met on the Suez Canal Crisis and decided to create the first UN Peacekeeping force. This force was referred to as the UN Emergency Force (UNEF).
Source: worldatlas.com