They do have war with Russia and Korea actually, Ukraine is as sure as day a proxy war of the US and Russia, and Korea there is us troops by the boatload in South Korea, and since they are in armistice they're aiding in the war. Iran true they are not in any conflict right now, at least not open and same for China though the US has all that noise with Taiwan that who knows where it's gonna land.
I don't know if I'd call it open war still there were aggressions but I don't know if they are moving towards open conflict just yet. It's quite possible but how I see it I wouldn't call it war just yet.