Militants attack a Defense Ministry compound in Sana'a, Yemen, killing at least 56 people and injuring 200 others.

On 5 December 2013, a coordinated terrorist attack occurred targeting the Ministry of Defense complex in Sana'a, Yemen. Heavily armed militants utilized a car bomb to breach the gates of the complex before storming it and occupying a hospital within it. The attack, which killed 52 people and injured 167, was claimed by Ansar al-Sharia, an affiliate of al-Qaeda in the Arabian Peninsula (AQAP). AQAP later issued an apology for the attack after footage from within the hospital was broadcast showing the gunmen murdering medical personnel.

Sanaa, officially the Sanaa Municipality, is the de jure capital and largest city of Yemen. The city is the capital of the Sanaa Governorate, but is not part of the governorate, as it forms a separate administrative unit. At an elevation of 2,300 metres (7,500 ft), Sanaa is one of the highest capital cities in the world and is next to the Sarawat Mountains of Jabal An-Nabi Shu'ayb and Jabal Tiyal, considered to be the highest mountains in the Arabian Peninsula and one of the highest in the Middle East.

Yemen, officially the Republic of Yemen, is a country in West Asia. Including the Socotra Archipelago, mainland Yemen is located in southern Arabia; bordering Saudi Arabia to the north, Oman to the northeast, the south-eastern part of the Arabian Sea to the east, the Gulf of Aden to the south, and the Red Sea to the west, sharing maritime borders with Djibouti, Eritrea, and Somalia across the Horn of Africa. Covering roughly 455,503 square kilometres, with a coastline of approximately 2,000 kilometres, Yemen is the second largest country on the Arabian Peninsula. Sanaa is its constitutional capital and largest city. Yemen's estimated population is 34.7 million, mostly Arab Muslims. It is a member of the Arab League, the United Nations, the Non-Aligned Movement and the Organisation of Islamic Cooperation.