Key Facts
- Start date
- 17 August 2009
- End date
- 15 December 2016
- Duration
- ~7 years
- Largest naval contributor
- United States Navy
- Second largest contributor
- Indian Navy
- Operational areas
- Indian Ocean, Gulf of Aden, Guardafui Channel, Arabian Sea
Strategic Narrative Overview
Naval operations commenced on 17 August 2009, with a multinational task force led by rotating flagships drawn from contributing nations. The United States Navy supplied the largest contingent, followed by India, with Italy, China, Japan, and South Korea also sending warships. The operation protected Allied Provider supply ships and coordinated with regional navies to build local coast guard capacity, conducting patrols across the Indian Ocean, Gulf of Aden, Guardafui Channel, and Arabian Sea.
01 / The Origins
Somali piracy surged dramatically in the late 2000s, threatening commercial shipping lanes and humanitarian supply routes in the Gulf of Aden and Indian Ocean. Pirate attacks on World Food Programme vessels and international cargo ships prompted NATO to respond. Following the earlier Operation Allied Protector, the North Atlantic Council approved Operation Ocean Shield in 2009 to provide a sustained multinational naval presence countering piracy off the Horn of Africa.
03 / The Outcome
NATO terminated Operation Ocean Shield on 15 December 2016, citing a significant reduction in successful pirate attacks as a result of sustained naval pressure and improved regional capacity. The operation helped regional states strengthen their own navies and coast guards. While Somali piracy was not entirely eliminated, the mission was credited with greatly diminishing the threat to international shipping and humanitarian operations in the region.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Side B
1 belligerent