 In 1995 and 1996, four RO/RO ships were used to deliver military cargo as part of U.S. and U.K. support to NATO peace-keeping missions.Four RRF ships were activated to provide humanitarian assistance for Central America following Hurricane Mitch in 1998.Three RRF ships currently support the Afloat Prepositioning Force with two specialized tankers and one dry cargo vessel capable of underway replenishment for the Navy's Combat Logistics Force.