The battle of gettysburg a. accomplished the union goal of securing the mississippi river b. resulted in the resignation of ambrose burnside c. was the final battle before lee surrendered at appomattox, d. was on fo the bloodiest battles of the war

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: