Allah ﷻ has informed us, by way of the Last Messenger of Allah ﷺ, that a war will occur in the last days, the aakhir zamaan, wherein such weapons will be used and fighting will be such that 99 out of 100 combatants will be killed, to the extent that if a bird flew above the war, it would fall down and die.

Only Allah ﷻ truly knows if we are close to this time or not.

But from looking at the current world events, It seems that we are already in, or close to this zamaana, when this war, the malhama kubra, will take place.