America's M1 Abrams tanks come in a number of versions. In addition to the M1A1 that is now standard, the US Army is beginning to field its M1 TUSK for urban warfare. It also operates the M1A2 System Enhancement Program (SEP), currently the most advanced
“[We’re] trying to to mirror what it would be like to deploy into an austere environment, from fort-to-port, and then generate combat power on a foreign soil.”
Under the Ringtausch program, Germany has sent newer equipment to Slovakia, Greece, Slovenia and the Czech Republic, with those countries shifting older gear to Ukraine.
The award caps off a year-long effort by Poland to sign a contract for the newest version of the Abrams tank, an effort that began as Russia amassed troops on Ukraine's border.