Complex sentence: According to the Moscow Centre for Strategy and Technology Analysis, the Iskander-M system was combat-tested in the 2008 South Ossetia war with Georgia and it proved highly effective in destroying military targets and infrastructure.
Split into simpler sentences: According to the Moscow Centre for Strategy and Technology Analysis, the Iskander-M system was combat-tested in the 2008 South Ossetia war with Georgia. It proved highly effective in destroying military targets and infrastructure.