5 costly mistakes the Russian military has made since it invaded Ukraine

• Russia has wracked up a litany of blunders since it invaded Ukraine in February 2022.
• Moscow's forces have repeated battlefield errors and even contributed to its own losses.
• These are five of Russia's most costly mistakes since the war began.

Russia invaded Ukraine more than 18 months ago, launching a brutal war that still has no end in sight.

Coverage of the grueling conflict has, in part, been characterized by a litany of Russian military mistakes that began early and continue to crop up.