Three Boeing defense plants face a strike as 3,200 machinists walked off their jobs. Members of the International Association of Machinists voted to strike.

After rejecting the company's second proposed contract, union members in the St. Louis area began striking Monday. They said they will not stop until they receive a fair deal.

Thousands of members of a union representing Boeing defense industry workers in the US states of Missouri and Illinois went on strike Monday after rejecting a contract proposal.It came hours after the union said in a statement that members at Boeing facilities in Missouri and Illinois had voted to reject a modified four-year labor agreement with Boeing.