Labor Day - the Battle of Blair Mountain (WV) unionizing coal miners bombed by US Army
For five days in late August and early September 1921, in Logan County, West Virginia, some 10,000 armed coal miners confronted 3,000 lawmen and strikebreakers, called the Logan Defenders,[2] who were backed by coal mine operators during an attempt by the miners to unionize the southwestern West Virginia coalfields. The battle ended after approximately one million rounds were fired,[3] and the United States Army intervened by presidential order.[4]
http://en.wikipedia.org/wiki/Battle_of_Blair_Mountain
The first skirmishes occurred on the morning of August 25. The bulk of the miners were still 15 mi (24 km) away. The following day, President Warren Harding threatened to send in federal troops and Army Martin MB-1 bombers. After a long meeting in the town of Madison, the seat of Boone County, agreements were made convincing the miners to return home. However, the struggle was far from over. After spending days to assemble his private army, Chafin was not going to be denied his battle to end union attempts at organizing Logan County coal mines. Within hours of the Madison decision, reports came in that Sheriff Chafin's men were deliberately shooting union sympathizers in the town of Sharples, West Virginia, just north of Blair Mountain—and that families had been caught in crossfire during the skirmishes. Infuriated, the miners turned back towards Blair Mountain, many traveling in other stolen and commandeered trains.
UMW officials and members of the "miner's army" display a bomb dropped on them during the Battle of Blair Mountain
By August 29, battle was fully joined. Chafin's men, though outnumbered, had the advantage of higher positions and better weaponry. Private planes were hired to drop homemade bombs on the miners. A combination of gas and explosive bombs left over from the fighting in World War I were dropped in several locations near the towns of Jeffery, Sharples and Blair. At least one did not explode and was recovered by the miners; it was used months later to great effect during treason and murder trials following the battle. On orders from the famous General Billy Mitchell, Army bombers from Maryland were also used for aerial surveillance, an early example of air power being used by the federal government against US citizens. One Martin bomber crashed on the return flight, killing the three members of the crew.[35][36] Sporadic gun battles continued for a week, with the miners at one time nearly breaking through to the town of Logan and their target destinations, the non-unionized counties to the south, Logan and Mingo. Up to 30 deaths were reported by Chafin’s side and 50–100 on the union miners' side, with many hundreds more injured. By September 2, federal troops had arrived. Realizing he would lose a lot of good miners if the battle continued with the military, union leader Bill Blizzard passed the word for the miners to start heading home the following day. Miners fearing jail and confiscation of their guns found clever ways to hide rifles and hand guns in the woods before leaving Logan County. Collectors and researchers to this day are still finding weapons and ammunition embedded in old trees and in rock crevices. Thousands of spent and live cartridges have made it into private collections.
Following the battle, 985 miners were indicted for murder, conspiracy to commit murder, accessory to murder, and treason against the State of West Virginia. Though some were acquitted by sympathetic juries, many were also imprisoned for a number of years, though they were paroled in 1925. It would be Bill Blizzard's trial where the unexploded bomb was used as evidence of the government and companies' brutality, and ultimately resulted in his acquittal