This is a list of countries that currently operate main battle tanks, in their military service.
[82] Rheinmetall initially claimed it could prepare up to 51 Leopard 2A4 tanks for Ukraine.
14 were jointly purchased by the Netherlands and Denmark for Ukraine on 20 April 2024, with delivery scheduled for Q1 2024.
[103] On 19 March 2024, Spain announced it is preparing an additional 19[104] or 20[105] Leopard 2A4 tanks for Ukraine, to be delivered over two batches in June and September respectively.
[82] A Challenger 2 Life Extension Project (LEP) is planned, and will include new optronics, situational awareness and fire control systems, with 148 tanks upgraded and rebadges as Challenger 3.