1864: Lt. Gen. Ulysses S. Grant, general-in-chief of all Union forces, moves the Army of the Potomac out of their winter encampments and 100,000 Union soldiers cross the Rapidan River in Virginia to begin the campaign that would set the stage for the defeat of Gen. Robert E. Lee’s Army of Northern Virginia. Union losses in the Overland Campaign – the bloodiest in American history – are heavy, but Grant’s troops are replaceable. Lee’s are not.
1916: To avoid a diplomatic break with the United States, Germany announces it will abandon its policy of unrestricted submarine warfare. Instead of indiscriminately sinking all vessels in the British Isles, German subs will only torpedo those found to carry war materials. Germany reverses course in less than a year, sparking America’s entry into World War I on April 6, 1917.
1917: After a nine-day crossing of the Atlantic through stormy seas, a detachment of destroyers commanded by Cmdr. Joseph K. Taussig arrives at Queenstown, Ireland (now known as Cobh). The destroyers will assist convoy escorts against German U-Boats, which are reportedly sinking a staggering 600,000 tons of shipping per month.
1945: Germany’s new president, Grand Admiral Karl Dönitz sends envoys to Gen. Sir Bernard Montgomery’s headquarters – a carpeted tent in Lüneburg Heath, Germany – and sign the unconditional surrender of German air, land, and sea forces in the Netherlands, Denmark, and northern Germany.
Meanwhile as the fighting rages on at Okinawa, the Japanese 32nd Army attempts – and fails – to make an amphibious assault behind American lines. A frenzy of kamikaze attacks on U.S. Navy send two destroyers and two rocket-armed amphibious ships to the bottom. Numerous other vessels are damaged.

6th Marine Division demolition crew, blows up a Japanese cave on Okinawa
1968: As soldiers of the 7th Cavalry Regiment, 1st Cavalry Division (Airmobile) move uphill, braving intense sniper fire, towards fortified enemy positions in Vietnam’s infamous Vietnam’s A Shau Valley, a soldier discovers an enemy claymore. Platoon Leader Douglas B. Fournet orders his men to take cover while he charges forward to disarm the mine. He unsheaths a knife and attempts to cut the wire used to detonate the device, but it explodes. Fournet shields his teammates from the blast with his body and he is posthumously awarded the Medal of Honor for his actions.

A Shau valley south Vietnam, wounded american soldiers
1970: After days of violent protests and rioting sparked by Pres. Nixon’s decision to begin military incursion into Cambodia, Ohio National Guard units open fire on protestors at Kent State University. In 13 seconds, four students lay dead and nine more are wounded.