I wonder how would you explain why the US always feels threatened. For example [0]: "“Russia is the most significant threat just because they pose the only exi

I wonder how would you explain why the US always feels threatened. For example [0]: "“Russia is the most significant threat just because they pose the only existential threat to the country right now. So we have to look at that from that perspective,” the commander of U.S. Strategic Command, or STRATCOM, Air Force Gen. John Hyten said during the Association of the United States Army’s Air and Missile Defense conference Wednesday." [0] https://www.cnbc.com/2018/02/28/nuclear-commander-russia-is-only-existential-threat-to-us-right-now.html https://www.cnbc.com/2018/02/28/nuclear-commander-russia-is-...