The USS Roosevelt is an Ohio-class nuclear submarine converted from a Trident missile carrier to a commando transport, housing 100 U.S. Navy SEALS members. The sub escaped direct control by Skynet because it was last on the roster to receive the upgrades that it could exploit. Captain Thaddeus Chu refused orders from Admiral Read to put in to the nuclear wasteland San Diego had become, and evaded other vessels on the open seas until a need for supplies forced it to make port in Argentina. There her commander was recruited into the Resistance by Sarah Connor's goodwill in providing much needed supplies and an escape from the blockaded port.