According to Austin's view of international law, it is not legally binding on states because it lacks two key elements of law: 1) International law is not commanded by a sovereign legislative authority in the way that domestic law is, and 2) There is no physical sanction imposed on states if they violate international law, unlike with domestic law. Austin believed that for a rule to be considered law, it must be enacted by a determinate sovereign power and enforced with physical sanctions for noncompliance.