 By 8 May, the USAF had airlifted about 400 tonnes of cargo into Khâm Đức, including two bulldozers, by a C-124 Globemaster.In addition, 33 U.S. Marines from Battery D, 2nd Battalion, 13th Marine Regiment were deployed to support the defenders of Ngok Tavak.From 16 April, the Marine artillerymen used Khâm Đức as a staging area where they could assemble their entire detachment, which included two 105 mm howitzers, ammunition, and supplies.