Related Clues:

• Go no further
• Come to a standstill
• Sentry's directive
• Drill command
• Perimeter command
• Sentry's word
• ''Don't take another step!''
• Stop temporarily
• Parade-ground command
• Cop call
• Restraining order
• Drill order
• ''___! Who goes there?''
• Pull up
• Stop progressing