Was Operation Diadem or the Battle of Cold Harbor fought during the Civil War?
Battle of Cold Harbor The Battle of Cold Harbor was fought from May 31 to June 12, 1864, with the most significant fighting occurring on June 3. It was one of the final battles of Union Lt. Gen. Ulysses S. Grant's Overland Campaign during the American Civil War, and is remembered as one of American history's bloodiest, most lopsided battles. Thousands of Union soldiers were killed or wounded in a hopeless frontal assault against the fortified positions of Confederate Gen. Robert E. Lee's army.
Battle of Pea Ridge The Battle of Pea Ridge (March 7–8, 1862) (also known as the Battle of Elkhorn Tavern) was a battle of the American Civil War. It was fought at Pea Ridge in northwest Arkansas, near Leetown. Union forces, led by Brigadier-General Samuel R. Curtis, moved south from central Missouri, driving Confederate forces into northwestern Arkansas. Major-General Earl Van Dorn launched a Confederate counter-offensive, hoping to recapture northern Arkansas and Missouri. Curtis held off the Confederate attack on the first day and drove Van Dorn's force off the field on the second. This Civil War battle, one of the few in which a Confederate army outnumbered its opponent, essentially established Union control of most of Missouri and northern Arkansas.