During the 2013 Uttrakhand Floods, the Indian armed forces took part in rescue operations. By 21 June 2013, the Army had deployed 10,000 soldiers and 11 helicopters, the navy had sent 45 naval divers, and the Air force had deployed 43 aircraft including 36 helicopters. From 17 to 30 June 2013, the IAF airlifted a total of 18,424 people – flying a total of 2,137 sorties and dropping/landing a total of 3,36,930 kg of relief material and equipment. The IAF participated in the rescue operation codenamed Operation Raahat and evacuated more than 4640 Indian citizens (along with 960 foreign nationals from 41 countries) from Yemen during the 2015 military intervention by Saudi Arabia and its allies in that country during the Yemeni Crisis.&lt;ref name="http://www.hindustantimes.com/ 2015"&gt;&lt;/ref&gt;