The increase is being driven in large part by the two largest military spenders in the world, the United States and China. Both nations increased their respective spending by 6.6%. The US alone increased spending $53.4 billion, which is itself almost as much as other major nations, like Britain, spend on their entire national defense budget.
https://www.zerohedge.com/geopolitical/us-china-lead-biggest-jump-world-defense-spending-10-years