Why was Taiwan’s president evacuated in the middle of the night?

Taiwan's President William Lai participated in an emergency evacuation drill. This drill was conducted as part of ongoing Taiwanese military exercises. The purpose of these exercises is to prepare for a potential Chinese invasion. The evacuation drill took place in the middle of the night, as indicated by the article's title, though the content itself does not specify the timing. The exercises are a proactive measure by Taiwan's military to enhance readiness against a possible invasion scenario.