How did the 1961 coup change South Korea’s National Assembly?

Following the coup d’état on May 16, 1961, the military junta led by Gen. Park Chung-Hee immediately dissolved the National Assembly and imposed martial law across South Korea.123

The legislative body remained suspended while the Supreme Council for National Reconstruction (SCNR) governed the country. In November 1962, the SCNR introduced a constitutional amendment bill that fundamentally restructured the legislature, shifting the government toward a system defined by a strong presidency and a weak, single-chamber National Assembly. This amendment was subsequently approved by a national referendum in December 1962.123