Song Yo-chan

Song Yo Chan (February 13, 1918 – October 18, 1980) was prime minister (Chief Cabinet Minister - Military Rule) of South Korea from 3 July 1961 to 16 June 1962. Previously, he had been the Head of the Ministry of Foreign Affairs and Trade from 22 July 1961 - 10 October 1961 and was a Lieutenant General. He ordered the arrest of corrupt officers in the army.[1]

Song Yo-chan 송요찬
Prime Minister of South Korea Acting
In office July 3, 1961 – June 16, 1962
Preceded by	Chang Do-yong
Succeeded by	Park Chung-hee
7th Vice President of South Korea
In office August 16, 1960 – August 19, 1960
President	Yun Bo-seon
Preceded by	Heo Jeong
Succeeded by	Office abolished
8th Minister of Foreign Affairs
In office July 22, 1961 – October 10, 1961
President	Yun Posun
Preceded by	Kim Hong-il
Succeeded by	Choe Deok-sin
Personal details
Born	(1918-02-13)February 13, 1918 Chungcheongnam-do, Colonial Korea (now South Korea)
Died	October 18, 1980(1980-10-18) (aged 62) Chicago, Illinois, United States
Nationality	Korean
Political party	Military
Alma mater	George Washington University
Military service
Allegiance	South Korea
Branch/service	Republic of Korea Army
Rank	Lieutenant General
Korean name
Hangul	송요찬
Hanja	宋堯讚
Revised Romanization	Song Yo-chan
McCune–Reischauer	Song Yoch'an

He had studied politics and economics at George Washington University[2] in Washington, D.C. During the final days of the First Republic of South Korea of president Syngman Rhee, he declared martial law[3] and forced the president to resign. Song Yo Chan refused to quell the student-led protesters even though the police asked for bullets and troops.[4] The protests are known as the April Revolution.