What does Martin carry with him into the battle at Cowpens? Why is it so special?

A patched up American Flag that his son had carried throughout the war until he died.

Explanation:

His son had died the day before, and while Benjamin mourns him and doubts about his commitment to the war, he founds the flag in his son´s saddlebags. When he shows up to the Battle of Cowpens, horseback with the flag up, Martin shows he has ultimately embraced his convictions and decided to use the flag to give impulse to the exhausted colonial army.

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.

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