Article 5 of the North Atlantic Treaty Organization states that if you attack one member you attack them all. Right after 9/1l the Balkans (Estonia, Latvia, Lituania) triggered it and sent over a 100 troops to fight side-by-side with the Americans. Trump said he might not go in to the Balkans to help if Russia invaded. Which means those who helped us would not be helped by us. Which is why Vice President Biden had to take a hurried trip there to try to assure them that nothing anyone said would change the relationship between them and America. NOTHING ANYONE SAID. Oy vey. The mouth roars again! :(