German Realpolitik

 How Europe found a workaround to get Trump to help Ukraine

With a heavy dose of Realpolitik, Germany and other European countries
got the U.S. administration to aid Ukraine without directly
confronting Putin.
...
 European leaders have rapidly learned to work with the American
president they have rather than wishing for another.

There's no greater proof of that than in the gushing response to
President Donald Trump's announcement that the U.S. will indirectly
provide weapons for Ukraine by allowing European countries to buy them
themselves while NATO coordinates deliveries.
...
In reality, the key decisions had already been taken in Europe, where
European leaders, faced with Trump's ambivalence toward arming Ukraine
and Russia's escalating summer offensive in the embattled country,
knew they had to act fast.

https://www.politico.eu/article/europe-donald-trump-weapons-aid-war-in-ukraine-nato/

Trump's ambivalence

Chickenshit, as some would say...