The term 'Pentagon Bigwigs' refers to the top-level officials in the United States Department of Defense, which is headquartered at the Pentagon in Washington, D.C. The two crossword solutions for this term are 'BRASS' and 'MILITARYBRASS, ' both of which refer to the highest ranking military officers in the U.S. Armed Forces. These officers are responsible for making decisions on matters of national security and defense policy.