More than 3,000 Boeing defence workers went on strike on Monday, in a fresh blow to the embattled aviation giant.
It comes after union members at operations in Missouri and Illinois, who build F-15 fighter jets and other military aircraft, voted against the firm’s latest offer over pay, work schedules and pensions.
Boeing is struggling to turn itself around after a series of problems, including safety issues and a damaging almost eight-week walkout by passenger plane workers last year.
The walkout is led by a local branch of the International Association of Machinists and Aerospace Workers, IAM, based in St Louis, where Boeing’s defence manufacturing hub is located.
IAM is one of America’s largest unions, representing roughly 600,000 members in the aerospace, defence, shipbuilding and manufacturing industries.
It is the first walkout at Boeing’s defence business since 1996, when work stopped for more than three months.

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