Group 1 - Boeing's defense manufacturing facility near St. Louis is facing its first strike in nearly 30 years due to union members rejecting a revised labor agreement [1] - Approximately 3,200 members of the International Association of Machinists and Aerospace Workers (IAMAW) plan to strike after voting against a proposal that included a 20% pay raise and increased retirement contributions [1] - The last strike at these facilities occurred in 1996 and lasted for 99 days [1] Group 2 - The potential work stoppage could put additional pressure on Boeing's defense and aerospace sector, which accounts for about 36% of the company's total revenue [1] - The affected factory employees assemble military aircraft such as the F-15 fighter jet and T-7 trainer, as well as missiles, ammunition, and parts for the Boeing 777X commercial aircraft [1] Group 3 - As of the latest trading session, Boeing's stock price has decreased by 0.53% [2]