Related Clues:

• Corps group?
• Where you can be all you can be
• Vast number
• It travels on its stomach, proverbially
• It "marches on its stomach": Napoleon
• College football's Black Knights
• Navy rival in football
• Large gathering
• Military forces
• Group of troops
• "Be all that you can be" group
• It holds a lot of companies
• Big group
• With 53-Down, aggressive swarming insect
• 'Be All You Can Be' group