Israel uses a nuclear weapon, either a neutron bomb, fission bomb (like used in Hiroshima) or hydrogen bomb against an adversary before January 1st, 2026.

To resolve as YES, Israel must admit the use of a weapon or the New York Times must say that Israel detonated the weapon.

Shows of force (e.g. doing a nuclear test on the border of Iran) that do not kill anyone or destroy property will cause this claim to be resolved as YES.