The chances of nukes and bang bangs over this are very, very low.
Yeah, keep telling yourself that, if it makes you feel happy. And there was no way WW 1 was going to happen ... until it did. And there was no way WW 2 was going to happen ... until it did. Nobody wanted those wars, not the Kaiser, not Hitler, not Stalin, not the British and not the French. The Japanese didn't want it in 1941. They thought there was no way out. They were getting pushed hard.
Fact is, nobody remembers all the times sabers have been rattled and nothing much happened, and yes, there have been plenty of those times. But those times the russian roulette trigger was pulled and the gun went off - those will never be forgotten by people who are engaged.
Revisionist bullshit. Kaiser and Hitler certainly DID want war. Hell, Hitler single handedly started the war in Europe, while Mussolini was still dicking around in Africa. Let's not forget Japan's invasion of Manchuria after their government was taken over by militant nut jobs. Japan definitely wanted a war with the US in 41. They just wanted it to be settled by 42. The US also wanted a war in Iraq in this millennia. Also, the British and French started all kinds of colonial wars before the great one. Wars generally start when the aggressor knows that they are more powerful than their opponent, and can crush them easily. See Hitler's invasion of Poland. However, things can spiral out of control pretty quickly. So does China want war with Japan? Probably, if they can isolate them from the other major powers, but that's not going to happen. The US is crazy enough to jump into any war right now with little to no provocation, and China knows this. However, if they think that they can pull off a quick win and then negotiate, they may make a move.