Warplanes from the United States and China flew in proximity on Tuesday and a Chinese military drill was announced as an American aircraft carrier group entered the contested South China Sea, suggesting the military rivalry of the Donald Trump presidency would continue into Joe Biden’s tenure. “What we see here is posturing and counter-posturing as Beijing in particular tries to probe and test the Biden administration and gauge the limits it may go to with those regional flashpoints,” said Dr. Collin Koh, a Research Fellow from RSIS.