How well were Harriet Tubman's nursing efforts recognized by the Union army? Evidence?

During the Civil War, Tubman worked for the Union army as a nurse, a cook, and a spy. Her experience leading slaves along the Underground Railroad was especially helpful because she knew the land well. She recruited a group of former slaves to hunt for rebel camps and report on the movement of the Confederate troops.

Explanation:

the density would be a smaller number.

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