What is the name of soldiers on horseback?

Soldiers who fought on horseback were known as cavalry. They often dominated the battlefield and performed a variety of important roles

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although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.