Is Merz justifiably being tough with the Hungarians for Ukraine's aid, or is he being overly impatient?

Friedrich Merz, the German Chancellor, is urging Hungary, the Czech Republic, and Slovakia to contribute fairly to Ukraine's support, emphasizing the importance of European security. Timo Lehmann from Der Spiegel argues that Berlin is justified in applying pressure, as these countries often seek to benefit from EU funds while being reluctant to assist Ukraine. This highlights a tension between national interests and collective responsibility in the EU.