In addition to traditional defense roles, the military has been called on to provide support to civil authorities for disaster relief and internal security. The Bangladesh Air Force and Navy, with about 7,000 personnel each, perform traditional military missions. A Coast Guard has been formed, under the home ministry, to play a stronger role in the area of anti-smuggling, anti-piracy, and protection of offshore resources. Recognition of economic and fiscal constraints has led to the establishment of several paramilitary and auxiliary forces, including the 40,000-member Bangladesh rifles; the Ansars and village defense parties organization, which claims 64 members in every village in the country; and a 5,000-member specialized police unit known as the armed police. In 2004, a new police unit called the Rapid Action Battalion (RAB) was constituted with personnel drawn from the military and different law enforcement agencies. RAB is designed to fight hardcore criminal gangs. Bangladesh Rifles, under the authority of the home ministry, are commanded by army officers who are seconded to the organization.

In addition to in-country military training, some advanced and technical training is done abroad, including grant aid training in the United States. China, Pakistan, and eastern Europe are the major defense suppliers to Bangladesh, but military leaders are trying to find affordable alternatives to Chinese equipment.

A 2,300-member Bangladesh Army contingent served with coalition forces during the 1991 Gulf war. In June 2003 Bangladesh was the third-leading contributor to UN peacekeeping operations with a total of 2,642 troops, observers, and military police. As of April 30, 2005, Bangladeshís 7,942 peacekeepers deployed around the world made it the top troop contributor to international peacekeeping operations. At the completion of their deployment to Sudan later in 2005, that figure should reach 9,862.