South Korean President Yoon Suk Yeol declared emergency martial law to protect the nation from North Korean threats, but it was rejected by parliament, making it legally void. The declaration, which banned all political activities, sparked protests and clashes between citizens, soldiers, and police in Seoul. The president accused the opposition of sympathizing with North Korea. Opposition leader Lee Jae-myung called the declaration unconstitutional and urged public protests. This move is seen as Yoon's attempt to overcome a political deadlock and assert control over the opposition-led parliament.