convoy

noun
  1. A group of vehicles or ships traveling together, typically one accompanied by armed troops, warships, or other vehicles for protection. noun
    The convoy of trucks moved slowly through the mountain pass.
    The naval convoy was escorted by destroyers to ensure safe passage.
  2. To accompany or escort, usually for protection. verb
    The military was tasked to convoy the supply trucks to the base.
    The ambassador's car was convoyed by security vehicles.