The U.S. Defense Security Cooperation Agency notified Congress on Aug. 2 of a proposed $593 million foreign military sale to Nigeria of up to 12 A-29 Super Tucano light attack aircraft, along with associated weapons, training, and spare parts. The sale is intended to bolster Nigerian troops in their fight against Boko Haram and Islamic State group extremists. President Barack Obama had blocked this sale in the final days of his administration in response to the January bombing of a displaced persons camp by the Nigerian military that reportedly resulted in about 236 deaths. In June, U.S. Sens. Cory Booker (D-N.J.) and Rand Paul (R-Ky.) wrote a letter to Secretary of State Rex Tillerson urging the State Department to withhold approval of the sale until Nigeria implements measures to ensure it observes international human rights and humanitarian law.