Russia 'obligated' to keep it's S-300 contract

Iranian Defense Minister Ahmad Vahidi says Moscow has a "contractual obligation" to deliver the advanced S-300 air defense system to Tehran.

"We have made a deal with the Kremlin to buy S-300 defense missiles, we don't think Russian officials would want to be seen in the world as contract violators," he stated.

Vahidi urged Moscow to keep its side of the bargain regardless of strong Israeli opposition.

Israel has previously threatened Iran over it's air defense.