Russia is massively expanding its arsenal of drones, and Moscow's unmanned attacks on Ukraine are likely to only get bigger

• Drones have played a significant role for both Russia and Ukraine throughout the 18-month war.
• Russia is increasing its domestic production of drones, including ones similar to Iran's Shaheds.
• Experts say Moscow could use its expanded arsenal for bigger drone attacks against Ukraine in the coming months.

An almost omnipresent element of the past 18 months of brutal fighting in Ukraine has been drones. Russia increasingly sees these systems as important tools, and as the numbers grow, they're expected to play a greater role in its attacks.