Israel's preemptive strikes on Iranian nuclear facilities have escalated into a "threshold war," a new type of conflict where a nuclear power prevents an enemy's nuclearization through force. This unprecedented situation undermines traditional deterrence, creating an unstable escalation spiral. Iran vows to rebuild destroyed facilities, while Israel continues its campaign. International talks have collapsed, and the incident sets a dangerous precedent for preventive warfare, potentially legitimizing similar actions by other nations and accelerating global nuclear proliferation. Hundreds have died in both Iran and Israel.

Prepared by Rachel Morgan and reviewed by editorial team.