A back-to-work order was issued for two Canadian railroads that had gone on strike last week. The Union will comply, but a lawsuit is planned, reported AP News. The Canadian arbitrator appointed to resolve the recent Canadian railroad labor dispute to protect the North American economy has ordered employees at the country's two major railroads back to work for normal operations. Canadian National and Canadian Pacific Kansas City saw most of their unionized workforce go back to work Monday The back-to-work order came on Saturday and means Canadian National will be able to continue operating the trains it restarted Friday morning just more than a day after it locked out workers. But Canadian Pacific Kansas City wasn't able to restart its operations before 12:01 a.m. Monday, when workers were ordered to return.