(CNN) Can a bridge be built in less than an hour?

If you're a member of the Navy's Seabees, it can -- along with makeshift airfields, hospitals, base camps, bunkers and more for U.S. military use.

The Navy's construction force has been following their motto of "we build, we fight" since they were formed during World War II.

Since its creation, the Seabees have gone on to build projects during conflicts and wars in Korea, Vietnam, Afghanistan, Kuwait and Iraq, as well as on the continent of Antarctica for scientific purposes.

The "fight" portion of the motto exists because their job isn't done after construction; they also have to know how to defend the newly erected facilities against enemy attack, as well as learn basic medical training.

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