The Korean War was a conflict between the United States and its United Nations allies and the communist powers under influence of the Soviet Union (also a UN member nation) and the People's Republic of China (which later also gained UN membership). The principal combatants were North and South Korea. Principal allies of South Korea included the United States, Canada, Australia, the United Kingdom, although many other nations sent troops under the aegis of the United Nations. Allies of North Korea included the People's Republic of China, which supplied military forces, and the Soviet Union, which supplied combat advisors and aircraft pilots, as well as arms, for the Chinese and North Korean troops.
Which two countries were the primary fighters for territory in the Korean War?
North and South Korea

In 1966 an agreement with the Vatican, fostered in part by the death in 1960 of anti-communist archbishop of Zagreb Aloysius Stepinac and shifts in the church's approach to resisting communism originating in the Second Vatican Council, accorded new freedom to the Yugoslav Roman Catholic Church, particularly to catechize and open seminaries. The agreement also eased tensions, which had prevented the naming of new bishops in Yugoslavia since 1945. Tito's new socialism met opposition from traditional communists culminating in conspiracy headed by Aleksandar Rankovic. In the same year Tito declared that Communists must henceforth chart Yugoslavia's course by the force of their arguments (implying an abandonment of Leninist orthodoxy and development of liberal Communism). The State Security Administration (UDBA) saw its power scaled back and its staff reduced to 5000.
What agency had its staff reduced to 5000 after Lenninist orthodoxy was abandoned?
UDBA

The United States had multiple rocket programs divided among the different branches of the American armed services, which meant that each force developed its own ICBM program. The Air Force initiated ICBM research in 1945 with the MX-774. However, its funding was cancelled and only three partially successful launches were conducted in 1947. In 1950, von Braun began testing the Air Force PGM-11 Redstone rocket family at Cape Canaveral. In 1951, the Air Force began a new ICBM program called MX-1593, and by 1955 this program was receiving top-priority funding. The MX-1593 program evolved to become the Atlas-A, with its maiden launch occurring June 11, 1957, becoming the first successful American ICBM. Its upgraded version, the Atlas-D rocket, would later serve as an operational nuclear ICBM and as the orbital launch vehicle for Project Mercury and the remote-controlled Agena Target Vehicle used in Project Gemini.
What type of rocket was first researched by the Air Force?
MX-774