Boeing is being hit with its second strike in less than a year after 3,200 hourly workers walked off their jobs building military aircraft.

The strike involves roughly 3,200 workers at three Boeing sites, including its St. Louis hub, which is expected to be central to the F-47 program.

IAM Midwest Territory vice president, stressed that the members build the aircraft and defence systems, hence they deserve nothing less than a contract fitting their expertise and keeping their families secure.