Roughly 3,200 unionized workers at Boeing facilities in Missouri and Illinois have voted to strike beginning at midnight Monday after failing to reach an agreement on a labor contract.

The action comes days after the International Association of Machinists and Aerospace Workers District 837 (IAM), whose members build fighter jets and other weapons systems, rejected a modified contract offered by Boeing.

"IAM District 837 members build the aircraft and defense systems that keep our country safe," IAM Midwest Territory General Vice President Sam Cicinelli said in a statement on Sunday.

"They deserve nothing less than a contract that keeps their families secure and recognizes their unmatched expertise," Cicinelli added.

Boeing Air Dominance vice president and general manager Dan Gilli

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