Yoon Suk Yeol’s political rise was fast: the former star prosecutor clinched South Korea’s presidency only a year after he entered politics. But his downfall was even faster: The Constitutional Court removed him from office on Friday,

President Yoon’s brief martial law declaration and subsequent impeachment trial have deeply divided South Korea, a key U.S. ally.

South Korean President Yoon Suk Yeol was ousted by the Constitutional Court on Friday, which upheld parliament's impeachment motion over his short-lived imposition of martial law last year that sparked the country's worst political crisis in decades.