work was carried out, the modernization of the combat vehicle directly 21 grad to the level of bmw 21v belgradem-21b marking and became belgrade, 2 for the first time the combat vehicle was shown at an exhibition held as part of the board of the state military industry committee following the results of 2020 of the system salvo. fire it is already becoming a hallmark of the belarusian military industry in our country, not only are they creating such the latest multiple launch rocket systems as a snake. carries out a systematic modernization of weapons models created back in soviet times, domestic, the heiress of the legendary katyusha significantly increases the capabilities of belarusian gunners. one of the purchase options. this is expensive. the second option is, accordingly, modernization, when we improve the performance and we understand everything that all the designers, the entire staff of the plant, receiving a new sample, especially when this sample is being tested with live fire. naturally, when they see a collection of photographic results , i want to make a lot of money, i want to c