DEFENSE AFFAIRS: Can developing better defenses and weapons deter Israel's enemies from gambling on attacking the Jewish state?
The F-35 is the fifth-generation aircraft considered the best in the world and is the tip of the spear for both the US and Israel.
According to the prior contract, Israel is due to receive another 14 in coming years, with about six more aircraft arriving each year.
Top Israeli officials have all made direct threats against Iran. US-Israeli F-35 aircraft drills have helped make this option a possibility.
This move by the US stems from an increasingly expanding focus on information security and safeguarding US interests.
Israel's F-35 fighter jets and six F-15s from the US Air Forces Central Command took part in multi-day joint drills in souther Israel on Wednesday.