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America's largest river is home to some of the most massive and advanced machines on the planet, and a team of expert engineers uses them to secure the Mississippi's levees and keep its busy boat traffic rolling.
The world's toughest naval fleet is put to the test as cutting-edge aircraft carriers, combat ships, and amphibious assault vehicles and their crews undergo challenging warfare exercises.
An expert team of heavyweight dredgers is on a mission to create the deepest port on America's east coast in Charleston, South Carolina, and using cutting-edge technology, they dig a harbor that can house the biggest cargo ships in the world.