was part, across the Rhine River into southern Germany to Bavaria and Austria in 1945. 1st Brazilian Fighter Group On April 22, 1986, the 1st Brazilian Fighter Group was awarded the Distinguished Unit Citation for its actions in the Po Valley region of Italy in World War II. The Brazilians, operating in Italy in support of Allied forces, destroyed in one day (April 22, 1945) over 45 vehicles, strafed pontoon bridges on the River Po (hampering a German retreat) and harassed fixed positions of the German forces. From the citation: "The casualties that they suffered reduced their pilot strength to about one half that of the United States Army Air Force squadrons operating in the same area, but they flew an equal number of sorties as their US counterparts ... Eleven missions of 44 sorties were flown destroying nine motor transports and damaging 17. Additionally, they destroyed the facilities of a motor pool, immobilized 35 horse vehicles, damaged a road bridge and a pontoon bridge, destroyed 14 and damaged three enemy-occupied buildings, and attacked four military positions and inflicted much other damage." Korean War Royal Marines at the Battle of Chosin Reservoir Task Force Drysdale, a combined unit of the United States 1st Marine Division which included 41 Commando, Royal Marines, formed in November 1950 at Hungnam in South Korea, with the aim of fighting its way to reinforce the garrison at Hagaru on the southern tip of the Chosin Reservoir. The column of Drysdale came under sustained attack almost from the off, but was eventually able to force its way through to Hagaru, with 321 casualties sustained. On entering the town, 41 Commando was nominated as the garrison reserve, and was called into action on the night of November 29/November 30, when part of the Commando was called on to reinforce a unit of the United States Marine Corps that was part of Drysdale on a hill overlooking the Chinese lines. During this night, the two Chinese divisions facing them sustained over 5000 casualties. Despite this, other United Nations forces along the reservoir were failing to hold the lines. So, the force at Hagaru were ordered to withdraw back to Hungnam. 41 Commando, along with the 5th Marine Battalion, brought up the rear, beginning on December 6. The force stopped at Koto-Ri on December 8, where a mass grave for 117 dead troops was prepared. 41 Commando moved out