The greatest risk of nuclear weapon use is not a peacetime accident but a nation facing catastrophic defeat in a conventional war. The pressure to escalate becomes immense when a country's conventional forces are being eradicated, as it may see nuclear use as its only path to survival.

Before the conflict, Iran maintained a "credible but not actual" nuclear program as a deterrent. By assassinating the supreme leader and launching an air war, the US has proven this strategy insufficient, forcing Iran to pursue an actual nuclear weapon for survival.

Deterrence happens in the mind of the enemy. The US fails to deter Iran by attacking its Arab proxies because Iranian culture views Arabs as expendable. To be effective, deterrence must threaten what the target culture actually values. In Iran's case, this means threatening Persians, not their proxies.

The doctrine of mutually assured destruction (MAD) relies on the threat of retaliation. However, once an enemy's nuclear missiles are in the air, that threat has failed. Sam Harris argues that launching a counter-strike at that point serves no strategic purpose and is a morally insane act of mass murder.

The targeted Iranian supreme leader had issued two religious edicts (fatwas) against developing nuclear weapons. His assassination removed this key restraint and installed his more aggressive son, who has not issued similar edicts, thereby inadvertently accelerating the nuclear threat.

Nuclear deterrence works because the weapons provide a "crystal ball effect." Unlike WWI leaders who couldn't foresee 1918's carnage, modern leaders have a stark, pessimistic view of a nuclear war's outcome. This shared vision of guaranteed calamity creates enormous incentives to avoid starting such a conflict.

Previously a remote possibility, direct military intervention in Iran creates a scenario where an unconditional surrender is demanded. This leaves Iran with little to lose, making the use of a nuclear weapon a logical defensive step, likely delivered via a cargo ship to a major US port.

Geopolitical solutions based on earthly incentives like economic development are bound to fail when dealing with an ideology focused on martyrdom. If people believe the ultimate goal is paradise after death, they won't compromise for a better life for their children now.

The specific religious ideology of a jihadist regime makes negotiation a "mirage." Unlike other nuclear-armed states, their potential acquisition of nuclear weapons cannot be managed through diplomacy or deterrence, making regime change the only acceptable long-term outcome.