amphibious assaults across was Danube, Bigge, Altmuhl, Isar, Inn, Mittel-Isar and Salzach rivers in Germany and Austria. It was assigned to First, Third, Seventh, and Fifteenth US Armies. The unit was at Salzburg on 7 May 1945 (V-E Day). It was then sent back stateside to prepare for operation in the Pacific. Arriving back in New York City on 17 June 1945, the unit proceeded to Camp Gruber in Braggs, Oklahoma before staging at Camp Stoneman in Pittsburg, California on 14 August 1945. The unit shipped out from San Francisco on 21 August 1945 and arrived in the Philippines on 7 September 1945, five days after the Japanese surrender. The Cold War On 10 October 1945 the 86th Reconnaissance Troop (Mechanized) was again redesignated the 86th Mechanized Reconnaissance Troop before finally being inactivated on 30 December 1946 while still stationed in the Philippines. However, the 86th Mechanized Reconnaissance Troop was reactivated again on 9 July 1952 as part of the Army Reserve. It continued serving within the Army Reserve for some years. Activation of the brigade with its new structure took place on 1 July 1963 at Fort Richardson, Alaska. The Army set up an experimental Airborne unit with the designation of Company F (Airborne), 4th Battle Group, 23d Infantry in 1962 at Fort Richardson. The company commander was Captain Lawrence. When Army combat forces were reorganized from the Pentomic division battle groups to brigades with subordinate battalions, the group became the 4th Battalion, 23d Infantry and its Airborne component was Company C. The unit was used to determine how best to use Airborne soldiers in Arctic conditions throughout the vast area of Alaska. The new structure included one Light Infantry Battalion; one Mechanized Infantry Battalion; and one Tank Company. Its shoulder sleeve insignia was authorized for use on 28 August 1963 and its distinctive unit insignia was authorized on 8 June 1966. The Brigade was reorganized from Mechanized Infantry to Light Infantry on 30 June 1969, with a reduction to two mechanized infantry battalions. In 1974 the 172nd Infantry Brigade was reorganized again to include three light infantry battalions. US Army Alaska was known as USARAL through the 60s and 70s, whereas after the activation of the 6th Infantry Division it was known as USARAK. The two Arctic brigades, the 171st (4-9th Infantry, 1-47th Infantry [which was subsequently deactivated], and other components at Fort Wainwright) and the 172d (4-23d