In 1912, the Reserve Officers' Training Corps (ROTC) was established.
The first ROTC unit was born with the establishment of the Department of Military Science and Tactics at the University of the Philippines in July 3, 1922. And it only became mandatory after 13 years when President Manuel Quezon signed Commonwealth Act 1, also known as the National Defense Act of 1935.
It was disbanded and demobilized after the World War II since the country could not afford to keep a large military force without depleting its resources. But later restored in 1967 as a mandatory program by President Ferdinand Marcos, who was a product of ROTC class 1937 with Executive Order 59.
Since the National Service Training Program Act of 2001 was passed, said program was no longer a mandatory but an optional program for the college students.