Yes, I gave a quick overview of the main steps, with minor inaccuracies to keep it simple. Ratification itself is not required unless the treaty itself require

Yes, I gave a quick overview of the main steps, with minor inaccuracies to keep it simple. Ratification itself is not required unless the treaty itself requires it. Countries do form agreements with “signed” but not “ratified” treaties. Sometimes even “exchanges of notes” can be binding.