Share This Article 1. The last know specimen of this subspecies of grizzly bear was shot in 1922. California grizzly Mainland grizzly Mexican grizzly Peninsular grizzly 2. This regiment conducted the last cavalry charge in US history. The 7th Cavalry Regiment The 3rd Dragoon’s Regiment The 26th Cavalry Regiment The 1st Cavalry Division 3. These specialized patrol boat were called “monsters” by the Vietcong. Landing Ship, Tanks Patrol Air Cushion Vehicles Swift Boats Monitors Loading …