The NATO treaty says that we have to maintain our ability to resist armed attack, so there is some minimum. And we’ve made public commitments to spend at least 2% of GDP (though that isn’t part of the treaty).

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JumpCrisscross 3 hours ago | parent [-]

Neither of those are full faith and credit guarantees. Congress can nullify them in a way it Constitutionally cannot actual debts.

	▲	sarchertech 2 hours ago \| parent [-]
		SS and Medicare aren’t debts either in that sense. Congress can reduce benefits if they please. In Flemming v. Nestor SCOTUS ruled that SS benefits are not guaranteed contractual rights but are instead statutory entitlements that Congress may modify or revoke.