They know that their large economy will deteriorate once they engaged in a war. They cannot afford to go back to the old times when they've got no infrastructure yet. Now, they've got vast of it on their mainland and cities that are close to their center. I think all of these invested military resources that they have are serving its purpose and they're only showy to it and are only bullying the countries that they are having so that, these bullied countries are going to take a note for themselves that they should be friends to them. They said that they're willing to cooperate to the USA but once Trump is back.