That means escalation.

Remember this decision when we look back from the future (I’m an optimist).
US and Germany ready to send tanks to Ukraine – After months of reluctance, the US and Germany reportedly plan to send tanks to Ukraine, in what Kyiv hopes will be a game-changer on the battlefield.
US President Joe Biden’s administration is expected to announce plans to send at least 30 M1 Abrams tanks.
German Chancellor Olaf Scholz has also reportedly decided to send at least 14 Leopard 2 tanks. He is set to speak in parliament on Wednesday morning.