Germany's decision also gives other countries such as Poland, Spain and Norway the opportunity to supply their stocks of Leopard tanks to Ukraine.

Earlier in the day, the newspaper El País wrote that Spain will send tanks to Ukraine as soon as they get the go-ahead from Germany.

Poland and a number of other nations have decided to send at least 100 wagons.

- The tanks will be a prerequisite for Ukraine to be able to regain the initiative from the stalemate that prevails.

Maybe towards the end of spring when they are fully trained, says lieutenant colonel Joakim Paasikivi to SVT Nyheter.

Learn more about Leopard 2 in the clip below.

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Here is the Leopard 2 tank. Photo: NTB/TT