Well,
in respond to the Russians delaying the S-300 missile system deal, Iran plans to develop an air defense system that is comparable to and even more sophisticated than the advanced Russian S-300 system.
In respond to the U.S. planting missile systems (for attack and defense purposes) ,including eight Patriot missile batteries, in Gulf area, Iran is launching a domestically-built air defense system to counter the ballistic missile threat.
They built anti-helicopter missiles, advanced ballistic missiles, etc...
Khomeni might annouce some military advantage .
If Iran became nuclear, Arab states would want to be nuclear. ( UAE and Saudi have already started their nuclear activity--- some are discussing even buying the nuclear bomb).
Iran is dragging the region to war and arms race.
By your exact same logic israel already dragged the entire region into war and an arms race.