Background: A multilateral treaty is concluded among several countries. The agreement establishes rights and obligations between each party and every other party. Multilateral treaties are often regional.[citation needed] Treaties of "mutual guarantee" are international compacts, e.g., the Treaty of Locarno which guarantees each signatory against attack from another.
Question: Multilateral treaties are often entered into by countries that share the same what?
Answer:<extra_id_0>.
<extra_id_0> region<extra_id_1>