If you look at a map of Russia or China, you will see that those countries are surrounded by US military bases. They are close to all borders.https://www.reddit.com/r/MapPorn/comments/9p6t4y/us_military_bases_surrounding_china/ How would the US feel about Chinese and Russian military bases along our Canadian and Mexican borders? Would the US feel threatened? Of course! The US still freaks out over Cuba, which has not presented a threat in decades.