Cope Cages refers to a slang term for slat armor, also known as an RPG cage, made for Russian T-90 tanks and other vehicles in the 2021-2022 Russia-Ukraine conflict. Though slat armor is used by many armed forces for a variety of military vehicles all around the world, the term "cope cages" became the subject of memes in early 2022 to make fun of the Russian military and its efforts to overtake Ukraine, mostly due to their ineffectiveness against weaponry used by Ukrainian troops such as the Javelin missile. The nickname is also in reference to the Wage Cage and Copium memes.