If we correct your argument so it's actually based on international law, it seems to boil down to "we have to ignore proxy warfare, otherwise Nicaragua might have historically (several decades ago) had a right to attack US military assets." That hardly seems like a reason to deny reality and ignore proxy warfare.
Comments
Only if we ignore all of Iran's proxy warfare.
If we correct your argument so it's actually based on international law, it seems to boil down to "we have to ignore proxy warfare, otherwise Nicaragua might have historically (several decades ago) had a right to attack US military assets." That hardly seems like a reason to deny reality and ignore proxy warfare.