a detachment used for security or reconnaissance
a line that indicates a boundary
maintain the security of by carrying out a patrol
the activity of going around or through an area at regular intervals for security purposes
the executive and legislative and judicial branches of the federal government of the United States
North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
