Also, there was a supplementary “active” form of protection with the mandatory smoke mortars, using 2×6 81mm electric dischargers, firing a wide variety of 3D17 smoke grenades, acting like decoys against enemy infrared sights and ATGM guidance systems. Most importantly, the T-90 was given the Shtora-1 electro-optical jammer. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.