this is about american history
Hours before the strike organized by the United Steelworkers of America was set to begin on April 9, 1952, President Truman nationalized the steel industry. The President did this, in part, to keep defense production from collapsing while American troops were fighting in Korea.
After the Supreme Court ruled the President had acted unconstitutionally in seizing the mills, Truman planned to invoke Section 18 of the Selective Service Act in order to legally take control of the mills and force steel workers back to their machines.
When this did not result in an end to the strike, and with defense production crippled, Truman ordered steelmakers and the union to meet at the White House to reach an agreement.
On July 24, 1952 a settlement at the White House was reached and the 53-day strike by the steelworkers ended.
Before the steelworkers in 1952, there were the miners in 1946.
When coal miners went out on strike in April, Truman seized the mines and ordered the miners back to work. After coal companies rejected a government settlement, the miners struck again.
This time the mining companies agreed to most of the miners' demands. The miners returned to their pits in December, but not before their union received a large fine for ignoring a court order not to strike.
Though Truman threatened to draft strikers into the military several times during his presidency, he also vetoed (unsuccessfully) the Taft-Hartley Act, which restricted the power of labor unions.