“I would like to confirm that Slovakia has provided Ukraine with an air-defense system S-300. The Ukrainian nation is bravely defending its sovereign country and us too. It is our duty to help, not to stay put and be ignorant to the loss of human lives under Russia’s aggression,” Heger said on Twitter.

The S-300 is a series of initially Soviet and later Russian long-range surface-to-air missile systems produced by NPO Almaz, based on the initial S-300P version.

The S-300 system was developed to defend against aircraft and cruise missiles for the Soviet Air Defense Forces.

it is regarded as one of the most potent anti-aircraft missile systems currently fielded. (ILKHA)