Ukraine plans to supply Poland with vertical drives to modernize main battle tanks PT-91 Twardy (based on T-72M1), the ones Polish Army is armed with. Relevant prospects were discussed by the head of UKROBORONPROM SE "Kharkiv Machine-Building Plant "FED " - Oleksandr Pashchenko - and the chairman of the Polish Defense Industry Association during the visit of Ukrainian delegation to Warsaw.