On April 18, three days after the assassination of President Abraham Lincoln, Johnston signed an armistice with Sherman at Bennett Place, a farmhouse near Durham Station. Sherman got himself into political hot water by offering terms of surrender to Johnston that encompassed political issues as well as military, without authorization from General Grant or the United States government. The confusion on this issue lasted until April 26, when Johnston agreed to purely military terms and formally surrendered his army and all Confederate forces in the Carolinas, Georgia, and Florida. It was the second significant surrender that month. On April 9, Robert E. Lee had surrendered the Army of Northern Virginia at Appomattox Court House. It was the virtual end for the Confederacy, although some smaller forces held out, particularly in the Trans-Mississippi region, into the summer.