The Bangladesh Navy () is the naval arm of the Bangladesh Armed Forces. The navy is mostly limited to coastal patrolling, however it is implementing an ambitious procurement and expansion program to ensure the security of Bangladesh's maritime boundary which includes the country's vast exclusive economic zone, deep sea oil, gas and mineral reserves, and vital shipping lanes in the Bay of Bengal. The Bangladesh Navy is undergoing major transformation since last decade. In 2010 contracts were signed for a total of 11 ships out of which 8 are new construction. Two Agusta Westland AW 109 E maritime helicopters were delivered in July 2011. On 23 June 2011 contract was signed with Ruag for supply of 2 Dornier 228 NG MPA.