which other space program was he a part other than the above one?
National Advisory Committee for Aeronautics (NACA)
Neil Armstrong
After the war, he completed his bachelor's degree at Purdue and became a test pilot at the National Advisory Committee for Aeronautics (NACA) High-Speed Flight Station at Edwards Air Force Base in California. 
what was the general purpose of the apollo missions landing the  humans on the Moon when was it launched? 1968 which organization launched it? National Aeronautics and Space Administration can you name any of its used spacecrafts? Lunar Excursion Module , command and service module any astronaut who took part in its program? Neil Armstrong, Michael Collins and Buzz Aldrin has this first person been to navy? Yes, he was also a naval aviator.
wiki:25681861
Neil Armstrong [SEP] Introduction
Armstrong was forced to bail out. After the war, he completed his bachelor's degree at Purdue and became a test pilot at the National Advisory Committee for Aeronautics (NACA) High-Speed Flight Station at Edwards Air Force Base in California. He was the project pilot on Century Series fighters and flew the North American X-15 seven times. He was also a participant in the U.S. Air Force's Man in Space Soonest and X-20 Dyna-Soar human spaceflight programs. Armstrong joined the NASA Astronaut Corps in the second group, which was selected in 1962. He made his first spaceflight as command pilot of Gemini 8 in March 1966, becoming NASA's first civilian astronaut to fly in space.