BAE Systems is planning to cut close to 1,915 jobs across air, maritime, land and applied intelligence business areas in the UK.
The decision to reduce workforce comes due to a decline in orders for Typhoon fighter aircraft, according to media sources.
A total of 750 jobs will be cut at the company’s facilities in Warton and Samlesbury.
There will also be 400 jobs slashed in Brough, 245 at RAF Marham and RAF Leeming, as well as a further 340 roles in Portsmouth and Solent.
The jobs at RAF Marham and RAF Leeming are under threat as the company intends to cease Tornado support and sustainment activities.
The British Royal Air Force is set to withdraw its Tornado fleet from service in 2019.
BAE will also remove 150 employees in London, Guildford, and other applied intelligence locations.
The company will cut 30 jobs in other locations across the country.
BAE Systems chief executive Charles Woodburn said: “The organisational changes we are announcing today accelerate our evolution to a more streamlined, de-layered organisation, with a sharper competitive edge and a renewed focus on technology.
“These actions will further strengthen our company as we deliver our strategy in a changing environment.
“Separately, we are also announcing actions at some of our UK sites to align our workforce capacity more closely with near-term demand and enhance our competitive position to secure new business.
“Those actions are necessary and the right thing to do for our company, but unfortunately includes proposed redundancies at a number of operations.”
The company has announced plans to reduce Typhoon final assembly and Hawk production rates while it waits for the Qatar Government to sign a contract to buy 24 of the fighter jets.
Qatar has recently signed a Statement of Intent to purchase Typhoon aircraft and six Hawk aircraft.