The only thing Hamas has achieved is the destruction of Gaza, BUT maybe Gaza was only a pawn is a bid to unite the Arab world in the total destruction of Israel, Russia will support the Arab States as they will effectively be at war with the West and have most of the oil
Russia may then commit all their forces to crush Ukraine, then Poland and the Balkans and possibly Germany, Italy and Greece would be helpless victims and the world would then hold its breath waiting for America to commit to a war in Europe without using Nuclear weapons or just say not our problem any more
China could unite with Russia to take out Japan in retaliation for WW11 or sit on the sidelines and pick over the bones when it is all over
We all know what North Korea will do in the middle of all this carnage
If one nutter pushes a red button then the world will be a desolate wasteland inhabited by a few mutant humans and million of cockroaches, the world will heal itself in a few thousand years but there will probably be nothing to say what existed here in our current era