A South Korean politician who grappled with an armed soldier in a show of defiance outside the country’s National Assembly on Tuesday night said she felt like the “last line” of defense in preventing security forces from entering parliament.

South Korea’s President Yoon Suk Yeol is facing parliamentary moves to impeach him after he sent heavily armed forces into Seoul’s streets with his baffling and sudden declaration of martial law that harkened to past dictatorships.