Complex sentence: This special operations force already existed far before March 31 1962 at 1954, the father of Kopaska is Captain (Navy) ISKAK from Navy Frogman School at Naval Base Surabaya.
Split into simpler sentences: This special operations force already existed far before March 31 1962. In 1954, the father of Kopaska is Captain (Navy) ISKAK from the Navy Frogman School at Naval Base Surabaya.