Within the US the Revolutionary War and the Civil War alone should be counted.
Traditionally it has been the US Civil War and WW2.
Mathew Brady was a famous Civil War photographer.
just one? Civil War
US Grant
The Monitor
The Emancipation Proclamation.
(US Civil War) The South shelled Ft. Sumter (US Fort).
Many were famous, but the Commanding General of the Union Army was US Grant
Patton, Eisenhower,
Operation Lam Son 719; the US Army's last major offensive of the Vietnam War.
Yes they were used. Old Ironsides it a famous one that you can still see today.
Taylor was a career US army officer who became nationally famous for his part in winning the Mexican War.