Since then, it has upgraded its facilities and fleet to bolster its capabilities of littoral patrolling of the coast line. The Army's Coast Guard is headed by an appointed Brigadier who is formally known as Director General. The officers of the Force are seconded from the Army and Navy for a period of two to three years, while the troops are permanent. In addition to land based troops, the Coast Guards also maintains a small fleet of patrol boats to perform its sea-borne duties, although the operations in deep water and dangerous undertaking are conducted by its counterpart Maritime Security Agency (MSA) of Pakistan Navy.