Iran has for the first time released footage of transporting and deployment of the Russian S-300 missile defense system.

The video of the S300-PMU2 launchers along with some of the system’s radars was broadcast by IRIB on Sunday.

On August 20, Iranian Defense Minister Hossein Dehqan announced that Iran will fully receive the remaining consignment of the missile defense system in a month.

Russia undertook to deliver the systems — which are used to intercept tactical and ballistic aircraft and projectiles — to Iran under a $800-million deal in 2007 but refused to deliver on the commitment, citing UN sanctions against Iran.

Following Moscow’s refusal to deliver the systems, Iran filed a complaint against the relevant Russian arms manufacturer with the International Court of Arbitration in Geneva. In April 2015, President Vladimir Putin lifted the Russian self-imposed ban on the delivery of the S-300 and subsequently Moscow signed a new contract to supply Iran with the systems by the end of that year. Tehran recently dropped the case at the arbitration court.