In what ways did the escaped of freed slaves help the union?

The escape of freed slaves significantly aided the Union by bolstering its manpower, as many former slaves enlisted in the Union Army, providing crucial support in the fight against the Confederacy. Their knowledge of the Southern landscape and military tactics also offered strategic advantages. Additionally, the escape of slaves undermined the Southern economy and labor force, weakening the Confederacy's war effort. Furthermore, their stories and contributions galvanized Northern support for the abolitionist cause and the Union’s overall mission.