Belarus claims that they have created their own Buk no worse than the Russian S-300
The Belarusian military has tested in flight an anti-aircraft guided missile for the Buk-MB complex, which, according to the Belarus-1 TV channel, is comparable in characteristics to the Russian S-300 and the American Patriot.
“The rocket is made using composite materials. Particular pride is the active homing head, which allows, when jamming, to completely carry out radio interception tasks. Interception range up to 70 km. The Buk-MB air defense system is a modern complex that corresponds to the best world analogues,” said Gennady Kiryachok, director of the development company.

Chairman of the State Military-Industrial Committee of Belarus Roman Golovchenko believes that the creation of a missile for an air defense system is the second most important event for Belarus after the creation, jointly with China, of the Polonaise multiple launch rocket systems.
“But here the rocket is an order of magnitude more complex, and the degree of localization is much deeper. This is not only military, but also technological security. We become the owners of high technologies by joining the club of rocket countries, of which there are about a dozen. This is a very serious stage in the development of Belarusian rocket science,” Golovchenko boasted.
So far, only the flight qualities of the rocket have been tested. Live firing is expected to take place at the end of the year. During the exercise, the radar-150 with a phased array antenna was also tested for the first time, which is “capable of detecting targets at a distance of up to 130 km.”
Previously, Russian military expert Alexander Fadeev argued that Belarus has been curtailing military-strategic cooperation with Russia since 2014, refocusing on creating weapons in cooperation with other countries, starting with small arms and ending with Belarusian-Ukrainian grenade launchers.
Belarus has already supplied Polonaise systems to Azerbaijan, without coordinating this step with Russia.
Belarus claims to have developed its own Buk system no worse than the Russian S-300.