Governments don't have an urgent pressing need to purchase the shiniest new weapons though, the comparison isn't valid. They do urgently need oil to stay in po

Governments don't have an urgent pressing need to purchase the shiniest new weapons though, the comparison isn't valid. They do urgently need oil to stay in power, plenty have been thrown out over far less. If hypothetically the world's biggest oil exporters stopped overnight there'd be widespread geopolitical instability/war within a month after reserves are gone.