What concession did grant make to lee in his terms of surrender?

Grant fefused many of Lee's surrender. Grant didnt want to give Lee and terms. Grant said Unconditional surrender (non-negotiable (cause Grant didnt want Lee to ask for money or other things if he surrenders)) or war. This became a very famous speech and gave grant the nickname Ulysses "Unconditional" Grant. Lee eventually agreed to unconditional surrender.

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