On 7 March 2015, Boko Haram swore formal allegiance to ISIL, giving ISIL an official presence in Nigeria, Niger, Chad and Cameroon.[106][107][108] On 13 March 2015, a group of militants from the Islamic Movement of Uzbekistan swore allegiance to ISIL;[109] the group released another video on 31 July 2015 showing its spiritual leader also pledging allegiance.[110] In June 2015, the US Deputy Secretary of State announced that ISIL had lost more than 10,000 members in airstrikes over the preceding nine months.[111][112]