During Grant's war of attrition, the Union army stayed on the offensive. Why was this bad for the Rebel army? They were getting too close to Washington, D. C. They did not have a chance to rest or reinforce. They were running out of supplies and food. Their defensive positions each time were poor.

During Grant's war of attrition, it was bad that the Union army stayed on the offensive because their defensive positions each time were poor. Their number of casualties grew poorer each time that they battled. But, despite this, Grant believed that the Union's supplies and manpower could overwhelm the Confederacy. Grant predicted that this war of attrition would weaken the Confederacy. Finally, there was no winning of neither side, but future consequences, as the Confederacy came to an end.