special staff divisions of EUCOM headquarters performed USAREUR's general and special staff duties. The principal function of the commanding general of USAREUR became the establishment and maintenance of high standards of discipline. General Huebner also became Commanding General, USAREUR. The Berlin Blockade began 24 June 1948 when the Soviet Union blocked the Western Allies' railway and road access to the sectors of Berlin under Allied control. Even though Allied forces in the city were outnumbered 50–1, General Lucius D. Clay, in charge of the US Occupation Zone in Germany, gave the order for the Berlin Airlift. Headquartered out of Wiesbaden Army Airfield, the Allies supplied almost 9,000 tons per day of supplies to the beleaguered city until the blockade was lifted on 12 May 1949. From 1948 to 1950, Cold War tensions grew, and the outbreak of hostilities in Korea in June 1950 heightened east–west tensions in Europe. The Seventh Army was reactivated at Vaihingen, Stuttgart in late November 1950. The two U.S. Army division sized units in the U.S. Occupation Zone of Germany, the First Infantry Division and the U.S. Constabulary, were assigned to the Seventh Army. Within a few weeks other assignments to the Seventh Army included the V and VII Corps. Due to President Truman's 10 December 1950 Declaration of a National Emergency as a result of circumstances in the Korean War, four CONUS based U.S. Army divisions were alerted to move to the U.S. Occupation Zone of Germany (these divisions were known as the augmentation force to the U.S. Army in Europe). A main concern was possible Soviet attempts to "take advantage" due to their numerical superiority in Germany during the Korean War. The first augmentation division to arrive overseas in Germany was the 4th Infantry Division in May 1951, followed by the 2nd Armored Division and the 43rd and 28th Infantry Divisions during summer and fall of 1951. On 24 November 1950 EUCOM activated HHC Seventh United States Army at Stuttgart to take over the command of the ground and service forces from USAREUR, while other USAREUR functions revert to EUCOM. General Eddy became CG of Seventh Army. HQ USAREUR continued to exist, without troops, to fulfilled certain legal requirements in connection with court-martial and other responsibilities. A new joint, multi-service United States European Command was established in Frankfurt, Germany on 1 August 1952. General Matthew B. Ridgway became commander and Gen. Thomas T. Handy