The term BE IN THE ARMY can be summarized by the crossword solution SERVE. Serving in the military is a long-standing tradition in many countries, and it is an honorable way to SERVE one's country. It involves a commitment to protecting the nation and its citizens, and requires dedication and hard work. Serving in the army can involve a variety of roles, from combat to support roles, and can be a rewarding experience for those who choose to take part.