South Korea has been plunged into uncharted waters after an extraordinary night of political upheaval. What happens next?

CNN By Jessie Yeung, CNN Seoul, South Korea (CNN) — South Korea is reeling after a whiplash eight hours during which the country's embattled president declared martial law but was forced to lift it amid widespread condemnation, throwing the country's political landscape into chaos and uncertainty. The saga began unfolding Tuesday night as most South Koreans prepared to go to sleep - prompting furious lawmakers to force their way past soldiers into parliament to strike down the decree, as protesters demanded President Yoon Suk Yeol's removal and no return to the country's painful authoritarian past. By dawn, the president had…