Final answer:
During Robert E. Lee's invasion of Pennsylvania in 1863, he aimed to bring an end to the war by challenging the Union forces. However, Lee's invasion was ultimately defeated by the Union army led by Major General George Gordon Meade at the Battle of Gettysburg.
Step-by-step explanation:
An example of Robert E. Lee putting Davis's counter proclamation into practice during his invasion of Pennsylvania in 1863 is seen in the fact that Lee's invasion was aimed at taking the war to the enemy and bringing the war to an end sooner. By invading Pennsylvania, Lee was challenging the Union forces and attempting to force them to end the war through negotiation or surrender. However, Lee's invasion ultimately resulted in a Union victory at the Battle of Gettysburg, where Lee's forces were repelled by the Union army led by Major General George Gordon Meade.