All the commanders of the Army of the Potomac were trying to capture Richmond.
First, Irvin McDowell at First Bull Run. Then George McClellan in the Peninsula campaign, followed by Second Bull Run. Then Burnside and Hooker. Finally Meade and Grant in the Overland campaign.
The Army of the Potomac tried to capture Richmond repeatedly.
First Bull Run. Fredericksburg, and all the battles of the Overland campaign.
They fought a defencive war, also they tried to capture the capital D.C.
George Rogers Clark did not capture Fort Pitt. During the Siege of Fort Pitt, the Cree tried to capture it, but the British prevailed.
Canada
Southern States.
During World War 2, Germany tried to capture the Russian City of Stalingrad because it was a major supply route for Russia and wanted to sever the route by taking the city, but they failed.
battle of richmond
He was the commandant of the Andersonville prisoner of war camp and the first person to be tried for war crimes after the Civil War.
Americans tried to capture Canada in the war of 1812.
Gabriel Prosser
Abraham Lincoln and many other people in the Union.