Complex sentence: Thus, on 24 February 1425, he appointed Admiral Zheng He as the defender of Nanjing and ordered him to continue his command over the treasure fleet for the city's defense.
Split into simpler sentences: Thus, on 24 February 1425, he appointed Admiral Zheng He as the defender of Nanjing. The same order stated for Zheng He to continue his command over the treasure fleet for the city's defense.