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