What are Abrams tanks and why is the US sending them to Ukraine?

US to accelerate delivery of tanks to Ukraine

U.S. closer to approving 'significant number' of Abrams tanks to Ukraine - POLITICO

Ukraine Needs To Up-Armor Its American-Made M-1 Tanks

U.S. poised to send tanks to Ukraine - CBS News

What we know about US Abrams tanks arriving in Ukraine 'next week', Russia- Ukraine war News

US sending 31 M1 Abrams tanks to Ukraine in response to Kyiv's appeal

U.S. expects to begin delivering Abrams tanks to Ukraine in September - POLITICO

What could future deliveries of Western tanks mean for the war in Ukraine?

Biden announces US will send Abrams tanks to Ukraine, U.S.

55) Abrams tanks will burn down just like the others if sent to Ukraine, says Kremlin