a joint-service approach to maritime domain awareness with sea-based and air-based unmanned assets. (P) Any other matter the Secretary of Defense considers relevant. (3) Metrics The Secretary of Defense shall identify metrics to assess progress in the implementation of the strategy required by paragraph (1). (4) Format The strategy required by paragraph (1) shall be submitted in unclassified form but may include a classified annex. (c) Feasibility study (1) In general The Secretary of Defense shall conduct a study on the feasibility and advisability of establishing a fund for an integrated maritime domain awareness and interdiction capability to protect the people, infrastructure, and territory of ally and partner countries in the Middle East from— (A) manned and unmanned naval systems, undersea warfare capabilities, and anti-ship missiles of Iran and groups affiliated with Iran