These ranged from transporting Marine and Army units and much of their equipment into battle, to search and rescue, special forces and electronic warfare operations.

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Foreign Secretary William Hague said London would offer millions of pounds in "non-lethal" equipment, including search and rescue, communications, and disease-prevention materials.

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Search and rescue teams from Florida, Virginia and California will arrive throughout today and tomorrow, and more rescue and medical equipment and emergency personnel are being prepared.

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On the day this disaster began, even as we launched a search and rescue effort for workers on the drilling rig, we were already staging equipment in the event of a larger-scale spill.

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These include the USS Bataan to conduct search and rescue missions, eight swift water rescue teams, the Iwo Jima Amphibious Readiness Group to help with disaster response equipment, and Hospital Ship USNS Comfort to help provide medical care.

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