Operation Ocean Shield

Operation Ocean Shield was NATO's contribution to Operation Enduring Freedom – Horn of Africa (OEF-HOA), an anti-piracy initiative in the Indian Ocean, Guardafui Channel, Gulf of Aden and Arabian Sea. It follows the earlier Operation Allied Protector. Naval operations began on 17 August 2009 after being approved by the North Atlantic Council, the program was terminated on 15 December 2016 by NATO. Operation Ocean Shield focused on protecting the ships of Operation Allied Provider, which transported relief supplies as part of the World Food Programme's mission in the region. The initiative also helped strengthen the navies and coast guards of regional states to assist in countering pirate attacks. Additionally, China, Japan and South Korea sent warships to participate in these activities.

The US Navy was the largest contributor of ships, followed by the Indian Navy. The taskforce was composed of ships from the contributing navies, led by a designated leadship. The role of leadship was rotated among the various countries involved. In October 2015 this was the Turkish frigate TCG Gediz.