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The US Constitution says only the US Congress can declare war. The last time it did so was against Romania in 1942. https://en.wikipedia.org/wiki/Declaration_of_war_by_the_United_States#Formal
The US Constitution says only the US Congress can declare war. The last time it did so was against Romania in 1942. https://en.wikipedia.org/wiki/Declaration_of_war_by_the_United_States#Formal