Complex sentence: Although MacMurray had coveted the China post, he soon came into disagreement with the U.S. State Department over U.S. policy toward the ruling Kuomintang government, and resigned the position in 1929 and briefly left the foreign service.
Split into simpler sentences: Although MacMurray had coveted the China post, he soon fell into disagreement with the State Department over U.S. policy toward the ruling Kuomintang government. He resigned the position in 1929 and briefly left the foreign service.