By Tom Balmforth and Andreas Rinke KYIV/BERLIN (Reuters) – Germany has decided to send Leopard 2 tanks to Ukraine to help fight Russia’s invasion and allow other countries such as Poland to do the same, while the United States may supply Abrams tanks, a source familiar with the matter told Reuters on Tuesday. A German government spokesperson and the foreign and the defence ministries in Berlin declined to comment. Kyiv has pleaded for months for Western tanks that it says it desperately needs to give its forces the firepower and mobility to break through Russian defensive lines and recapture o…