Complex sentence: Christie then returned to Washington, finally receiving MacArthur's support for the Medal of Honor which was awarded posthumously to Dealey's wife, Edwina, on August 29,1945.
Split into simpler sentences: Christie then returned to Washington, and was get MacArthur's support for the Medal of Honor. It was awarded posthumously to Dealey's wife, Edwina, on August 29,1945.