Around 3,200 employees in Boeing?s defence division went on strike on Monday, just nine months after the last industrial action at the crisis-stricken U.S. aircraft manufacturer.

Workers belonging to the IAM trade union rejected a four-year labour agreement on Sunday.

?3,200 highly-skilled IAM Union members at Boeing went on strike at midnight because enough is enough,? IAM wrote on X.

Among other things, the employees were responsible for building fighter jets such as the F-15 and missile systems in the states of Missouri and Illinois.

Boeing has faced a series of setbacks in recent years.

Its defence division is struggling with delays and severe cost overruns on several projects, including the conversion of two Boeing 747 aircraft into new presidential aircraft.

Last year, a strike by tens of thousands of workers brought production of Boeing?s best-selling 737 model and the 777 long-haul jet to a standstill for around two months.

At the beginning of November, the employees accepted the aircraft manufacturer?s offer of a 38 per cent pay rise over a four-year period. (dpa/NAN)

?Workers display picket signs, as they protest during a walkout by members of the International Association of Machinists and Aerospace Workers (IAM) over contract negotiations, outside Boeing company?s facility, in Berkeley, Missouri, U.S., August 4, 2025 REUTERS/Lawrence Bryant

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