Boeing is expanding plans to replace striking St Louis-area workers who assemble fighter jets and munitions with new hires through year's end, management announced on Thursday in an internal memo shared with Reuters. Roughly 3,200 members of the International Association of Machinists and Aerospace Workers (IAM) District 837 have been on strike since August 4. The first group of replacement workers for munitions production and assembly mechanics will begin training on Friday, according to the memo from Boeing Vice President Dan Gillian. Boeing is also evaluating moving some work to third parties, Gillian said. Boeing declined to comment on the memo or say how many replacement workers would start training. Union officials and members said the move was largely a...