Noted with alarm:

Jerusalem Post - Iran's air force does not pose a threat to the Israeli Air Force, a high-ranking IDF officer has told The Jerusalem Post. IAF warplanes, he said, were capable of overcoming the air defense systems of all of Israel's neighbors.

"The Iranian air force is not a threat to the IAF," the officer told the Post. "None of our neighbors pose an aerial threat that the air force would not be able to deal with."

....The United States, the officer said, was the preferable choice for launching a military strike against Iran. "America is a world superpower,"

The Iranian Air Force is a low-tech service, with very limited resources. Many of their planes, which are basically more than 20 years old, are downlined with parts shortages. However, their air defense missiles might be a different story:

Russia has signed a deal with Iran to sell 29 of its TOR M-1 Anti-Aircraft/Anti-Missile systems, a development that will complicate any planned pre-emptive attack on the rogue nation's nuclear facilities. Russian officials claim the Tor system is "a weapon of defense" and does not represent a danger to the U.S. as long as Washington does not attack Iran.

The 9K331 Tor [SA-15 GAUNTLET land-based, SA-N-9 naval version] low-to-medium altitude SAM system is capable of engaging not only aircraft and helicopters but also RPVs, precision-guided weapons and low flying cruise missiles. The sophisticated Tor system could ensure reliable protection for government, industrial and military sites.
Western intelligence reports indicate that efforts to increase Iran's air defense capability have lately been stepped up. Mostafa Mohammed Najjar, minister of Defense and Logistics Procurement stated clearly in the Parliament "developing and expanding the air defence system and missiles are the highlights of the programmes of the (Iran) defence industries". Sofar the Iranians have been unable to build a nationwide, integrated air defense network. As a result, the Iranian military relies entirely on point defense of key locations using surface-to-air missile (SAM) batteries. The present Iranian air defense arsenal includes small numbers of Chinese model SA-2s and Russian SA-5 and SA-6 SAMs. Substantial efforts have been made for years to purchase the highly capable SA-10 Grumble missile system that the Russians have been aggressively marketing as the S-300. According to intelligence assessments, the heaviest-defended areas include Tehran and R&D and production centers involved in the Iranian nuclear, chemical and biological weapons programs. One key facility defended with the antiaircraft weapons is the nuclear complex at Bushehr.

The Israeli and US Air Forces have not yet met this TOR defense system, and I’m sure there is some concern in both services about it. Read the rest of the article to find out how second-rate the rest of the Iranian defense system is.

Israel must be defended to the last American.