They may try to go to war but they will end up taking on Russia and China at the same time because really the USA wants to destroy both China and Russia if it means staying top dog given all the USA has done to both nations. Hence they risk mutual destruction no matter what and really that scenario is a no go given how hard the USA is trying to get other nations to gang up against China since they are too chicken to fight a foe that can hurt them back equally if not more so and they want a good dose of that hero’s complex that they can never get if they start the fight first (I mean like at the Vietnam war) Hence why NZ are having second thoughts and the UK and AZ are only really capable of barking without really trying to bite because they know that if they anger China greatly enough, one DF missile can easily sink them both so really the USA is having a very hard time really getting anyone to start a real fight in there place. Besides, the year has only started and the USA has this many problems and the craziness is only getting started. Also, there are more of an incentive to bring the USA down since every where around the world would benefit if the USA reserve status is gone, since the world no longer have to lend the USA money to spend on war so that is a big plus. If the USA goes down, you can imagine that the governments in both the uk and az will do anything to avoid being the target of China and Russia, especially in a world where the majority have had enough of the Anglo saxons pissing everyone off with the white equals right business and hence the leadership will change to avoid incurring There wrath as everyone knows, the UK, AZ and Canada’s combined force cannot handle China alone and if RUssia comes in As well (I mean they have all given Russia the incentive to do so), well they are screwed. The USA wants to start the war with them as the protagonist and China as the absolute villains and the world cheering them on. Only problem is that China doesn’t start fights, they end fights.