SYDNEY—Three hundred U.S. Marines flew out of Australia on Sunday as their troop rotation came to an end, the first of a 1,250-strong force to leave the Pacific nation after being stationed for six months in the country’s far north.
The sixth rotational group was the most advanced contingent to be sent since the program began after former U.S. President Barack Obama agreed to send troops in 2011 as part of a military pivot to the Asia-Pacific region.
