That’s why we have an air force and navy. Keep them prepared and nobody’s invading the USA. England did very well for centuries without a large standing army.
Well, if you want to compare 21st century warfare with the 18th century fine, but the fact is the Britain did have a large army. They were just scattered all over the globe, mostly made up of conscripted armies in colonized nations. But armies, none the less. Also, in the past, we were able to rely on the draft when we needed to. Do you honestly think today’s yutes are going to comply with draft notices? Do you think there would be time to arm and train them for modern warfare before we would be overwhelmed? Besides, we’re not talking about shrinking just the Army. The AF and Navy are in for it too.