Boeing is slimming down its military aircraft business and cutting workers as the US tightens defence spending and profit margins shrink.
Boeing's military division makes the well-known Chinook transport helicopters, as well as the C-17 transport and the F/A-18 fighter-bomber.
The job cuts will start with 10% of the group's executives. Boeing did not say how many more workers will lose jobs.
It will consolidate six divisions of the business into four.