India, March 25 -- General Dynamics Electric Boat, a division of General Dynamics (GD), announced that it has received a $1 billion contract modification from the U.S. Navy. The contract is for long lead-time materials related to the Virginia-class Block VI submarine.

Virginia-class submarines are designed from the keel up for the full range of 21st-century mission requirements, including anti-submarine and surface ship warfare and special operations support. General Dynamics Electric Boat is the prime contractor and lead design yard for the Virginia class and constructs them in a teaming arrangement with HII's Newport News Shipbuilding in Virginia.

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