Answer :
Final answer:
One major failure of Reconstruction was the loss of civil rights for African Americans when federal troops departed the South, leading to prolonged struggles for equality and civil rights.
Explanation:
One of the major failures of Reconstruction efforts was that African Americans lost their civil rights when federal troops left the South. As Reconstruction ended with the withdrawal of the Union army in 1877, the federal government's failure to maintain the promises and ideals of Reconstruction had long-lasting detrimental effects on African Americans. This led to continued struggles for civil rights and equality, culminating in federal legislation during the Second Reconstruction in the 1960s.
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