Growth of GDP is irrelevant.
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wrote on last edited by [email protected]
Growth of GDP is irrelevant. The article you linked doesn't say that they are increasing spending targets by 5%. The article said they are increasing spending targets from 2% of GDP to 5% of GDP. They are increasing spending targets by 150%.
Look, defense spending isn't a monotonic relationship with GDP. It's a risk assessment taking into account the value of your assets and activities as well as the size of the threat faced. In the 90s, after the collapse of the Soviet Union, there was basically no large threat to the international US-led order. The US still had to maintain a base level of funding to squash upstarts (pirates, ...Iraq), but the safety of high value assets and activity could be insured with much less funding.
Your initial argument was that spending on defense ought to be on par with the value of the threat faced, which makes no sense. Spending on defense is insurance to protect what makes you money. You don't price flood insurance for your home on the cost of that many gallons of water. You price it based on the value of your home and the likelihood of it flooding.