オーバーランド方面作戦
Additional differences caused further friction between Grant and Meade. Waging a war of attrition in his Overland Campaign against Robert E. Lee, Grant was willing to suffer previously unacceptable losses with the knowledge that the Union Army had replacement soldiers available, whereas the Confederates did not. Meade, despite his aggressive performance in lesser commands in 1862, had become a more cautious general and more concerned about the futility of attacking entrenched positions. Most of the bloody repulses his army suffered in the Overland Campaign were ordered by Grant, although the aggressive maneuvering that eventually cornered Lee in the trenches around Petersburg were Grant's initiative as well.