Final answer:
The main reason General Lee finally decided to surrender was being surrounded with no escape route. Fear of unnecessary deaths, the tiredness and hunger of Lee's men also played a role.
Step-by-step explanation:
The main reason that General Lee finally decided to surrender was that he was surrounded with no escape route. This occurred during the Battle of Appomattox Court House in April 1865. Lee's army was outnumbered and cut off from any possibility of retreat, leading him to make the difficult decision to surrender.
Lee's fear of unnecessary deaths can also be considered a contributing factor, as he did not want to sacrifice more lives in a battle that seemed impossible to win. Additionally, Lee's men were indeed tired and hungry after years of fighting, which further weakened their chances of success.
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