Before the Panama Canal opened to traffic on August 15, 1914, a.
the French only lost approximately 3,000 workers attempting to build their own canal.
b.
the elimination of mosquitoes had removed all danger from the undertaking.
c.
some 6,000 lives were lost building it.
d.
the Atlantic and Indian Oceans were not connected.

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roosevelt believed that in light of the country's recent military successes, it was unnecessary to use force to achieve foreign policy goals, so long as the military could threaten force. this belief, and his strategy of “speaking softly and carrying a big stick,” shaped much of roosevelt's foreign policy.