The Martinsburg strike began on July 14 in West Virginia. The strike finally some 45 days later, after it was put down by local and state militias, and federal troops. Because of economic problems and pressure on wages by the railroads, workers in numerous other cities, in New York, Pennsylvania and Maryland, into Illinois and Missouri, also went on strike. An estimated 100 people were killed in the unrest across the country. In Martinsburg, Pittsburg.