On December 3, 2024, former South Korean President Yoon Suk-Yeol declared martial law from the Yongsan presidential office in Seoul, creating a turbulent situation in the country. Through live broadcasts, soldiers could be seen attempting to enter the National Assembly, while lawmakers and citizens attempted to counter the declaration. President Yoon reversed his decision a few hours later, but did not resign voluntarily.
Court proceedings began as the Constitutional Court reached a quorum to address the impeachment charges against Yoon. Following 11 hearings, on April 4, 2025, the court declared that Yoon's actions were unconstitutional and upheld his impeachment.
This ruling removed Yoon from office, marking a significant moment for the country's constitutional integrity. Korea’s labor movement, including UNI affiliates, played a key role in public demonstrations. These groups, part of the UNI Korea Liaison Council, view the decision as an opening to pursue previously hindered social and labor reforms.