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July 6 (Reuters) - Lockheed Martin LMT.N will buy naval defense company Ultra Maritime from Advent for $3.45 billion, the private equity firm said on Monday.

Ultra Maritime, specializing in anti-submarine ‌warfare ⁠and undersea defense technologies, is a part of Cobham Ultra — created after Advent acquired British aerospace Cobham in 2019 and then combined ​it with ​Ultra Electronics ⁠following its 2022 takeover.

Earlier this year, Ultra Maritime received a development contract from the U.S. Navy for its underwater acoustic decoy, designed to protect ships or submarines from torpedoes.