Which significant railroad strike ended when federal troops were deployed?

The Pullman Strike is the significant railroad strike that ended with the deployment of federal troops. This strike began in 1894 when workers at the Pullman Company protested wage cuts and high rents in the company town. The strike gained national attention and quickly spread to other railroads, interrupting rail traffic and mail delivery.

The federal government intervened by sending troops to Chicago to break the strike, citing the disruption of mail transportation and claiming that it was necessary to maintain order. This decisive action led to violent clashes between strikers and troops, resulting in several deaths and injuries. The involvement of federal troops underscores the government's prioritization of railroad operations and commerce over worker rights at that time.

In contrast, the other options do not represent strikes that ended through the direct intervention of federal troops on such a significant scale or during this specific historical context. The Great Railroad Strike preceded the Pullman Strike, while the Chicago Strike and Runaway Strike do not have the same level of substantial national impact or federal military involvement.