The equipment Russia is bringing ( biplanes, armoured trains, random assortiments of trucks and self-propelled artillery pieces) are literally out of the 1950-1960s. They sure knew how to manufacture things then if it's still operational!
I appreciate something well designed, simple and durable.
>The Antonov An-2 ("kukuruznik"—corn crop duster; USAF/DoD reporting name Type 22,[5] NATO reporting name Colt[6]) is a Soviet mass-produced single-engine biplane utility/agricultural aircraft designed and manufactured by the Antonov Design Bureau beginning in 1946.[4] Its remarkable durability, high lifting power, and ability to take off and land from poor runways have given it a long service life. The An-2 was produced up to 2001 and remains in service with military and civilian operators around the world.