4 of Russia's deadliest military systems in its war against Ukraine

• Russia has struggled to break down Ukraine's fierce defenses since its invasion in February 2022.
• It's since turned to both modern and Soviet weapons in an attempt to grind down Ukraine's forces.
• Insider has compiled a list of four of the most effective ones Russia has used so far in the war.

Since Russia's full-scale invasion of Ukraine in February 2022, the Kremlin has had to adapt its battle strategy as its forces have struggled to break down fierce Ukrainian resistance and have suffered heavy losses.

Russia has since turned to both modern and old Soviet military equipment to try and turn the tide back in its favor.