Of course the proximate issue is whether the prospective deal with Iran is 'another Munich'.
Now I'll leave aside some minor contemporary details like the fact that as a signatory of the Nuclear Non-Proliferation Treaty Iran is perfectly within its rights to develop nuclear power for peaceful purposes in any way they see fit, and that Ayatollah Khameini"has also issued a fatwa saying the production, stockpiling and use of nuclear weapons is forbidden under Islam.", and that Pakistan (Sunni) is a non-participant that openly has nuclear weapons and Israel (another non-participant) almost certainly has them but will not admit it, or that Saudi Arabia (participant) has stated that they will purchase them if they deem it desirable.
Let us think instead about Munich.
