A chance encounter of mine while visiting the Australian War Memorial was a reception hosted by two key military leaders. On the left is Lieutenant General Angus Campbell. He was the former Deputy National Security Adviser to the Prime Minister and then Chief of Australian Army. In 2018, Campbell became the country’s most senior military officer as the Chief of the Defence Force. On the right is Mark Alexander Milley. This four-star general of the United States is the Chief of Staff of the Army and member of the Joint Chiefs of Staff serving the White House. The little boy between them is unknown.