It helped them find and attack German planes.
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Ulysses Grant (born 1822- died 1885) commanded the victorious Union army during the American Civil War 1861-1865 and served as the 18th U.S. president from 1869 to 1877. Also he was born in Ohio and fought in the “Mexican-American” War from 1846-1848
"Peace with Honor" was uttered by U.S. President Richard M. Nixon on January 23, 1973 to describe the Paris Peace Accord that helped end the Vietnam War. The treaty specified that a ceasefire would take place four days later. It was stipulated there that the North Vietnamese would release all U.S. prisoners, and all U.S. troops would withdraw from South Vietnam.
So the closest answer is (A) An exchange of prisoners of war with North Vietnam.
Answer:
they perform man's job in the steel industry like the oilmines above ground , carpenter unloading docks , the clock around the calender etc .