Iran has tested its home-grown air defense system - designed to match the Russian S-300 - which is set to be operational by March, the head of the Revolutionary Guards air defense has said as state TV aired footage from a "secret" drone base in an undisclosed desert location. "In parallel with the deployment of the S-300, work on Bavar-373 system is underway," Farzad Esmaili told state broadcaster IRIB late Saturday. "The system is made completely in Iran and some of its parts are different from the S-300. All of its sub-systems have been completed and its missile tests have been conducted," Agence France Presse quoted Esmaili as saying. Bavar (which means "belief") is Tehrans first long-range missile defense system, and is set to be operational by March 2018, he added. In 2010, Iran began manufacturing Bavar-373 after the purchase of the S-300 from Russia was suspended due to international sanctions. Russia resumed the sale following the 2015 nuclear deal with world powers which lifted sanctions, and Irans S-300 defense system became operational in March. On Sunday, state television aired the first footage from a "secret" drone base in an undisclosed desert location, where dozens of different types of unmanned aircraft were lined up. "If necessary, a great number of Irans high-speed eagles (drones) will land on the enemy," Esmaili said in the footage. On Saturday, the new defense minister Amir Hatami said Iran has "a specific plan to boost missile power". He said he hoped "the combat capabilities of Irans ballistic and cruise missiles" would increase in the next four years. The comments came amid increasing tensions with Washington, which has passed new sanctions against Irans ballistic missile program.