South Korea and Poland are reportedly close to finalising a $14.5 billion arms deal, which alongside the sale of 48 F-50 lightweight fighter jets will include transfers of around 850 tanks and artillery pieces. These will include approximately 670 K9 Thunder self propelled guns, and 180 modernised variants of the K2 Black Panther tank. The K2 is the only NATO compatible tank in production worldwide using an autoloader, meaning its crew requirements are reduced from four to three, and is widely considered the most capable tank in the world rivalled only by the Russian T-14. While the T-14 has a number of significant performance advantages, including an unmanned turret, greater penetration on its anti armour rounds, and superior armour, Russia has neglected to invest in meaningful acquisitions leaving its armoured units poorly placed to counter large numbers of K2s in the event of a Russian-NATO war or a limited Polish intervention in Ukraine. Source : https://militarywatchmagazine.com/article/poland-1000-k2-russia-obsolete