The U.S. and Germany pledge tanks to Ukraine, signaling heavy fighting ahead : NPR

The U.S. and Germany had resisted sending tanks for months. This marks the latest upgrade in heavy weapons for Ukraine and comes amid growing expectations the fighting will soon escalte.

Promoting Stability or Fueling Conflict? The Impact of U.S. Arms Sales on National and Global Security - Quincy Institute for Responsible Statecraft

Russia-Ukraine war: Germany 'not blocking export of Leopard tanks', says EU foreign policy chief – as it happened, Ukraine

Nato allies pledge more arms for Ukraine, Germany holds out on tanks

U.S., Germany to send dozens of battle tanks to Ukraine

Germany must overcome its reluctance to send heavy armor to Ukraine

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Nato allies pledge more arms for Ukraine, Germany holds out on tanks

Germans split over weapons for Ukraine – DW – 05/02/2022

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Ukraine says US and German tank pledges 'only the beginning' and calls for fighter jets, Ukraine