NATO Secretary General Jens Stoltenberg called on members of the military alliance not to let up in their support for Ukraine in the fight against the Russian invasion during a visit to Berlin on Thursday.
"We must continue to give the Ukrainians the weapons they need to stay strong on the battlefield today, so they can be strong at the negotiating table tomorrow," Stoltenberg said after a meeting with German Chancellor Olaf Scholz.
Stoltenberg praised Germany's contribution as the second largest supplier of aid to Ukraine after the United States.
The NATO leader specifically cited German deliveries of infantry fighting vehicles and main battle tanks as well as advanced air defence systems.
"These contributions help Ukraine defend its freedom and they help keep Europe safe," he said.
Stoltenberg also praised Scholz's government for increasing spending on defence and stationing troops in fellow NATO countries including Lithuania and Slovakia.
He warned that Russia's aggression in Ukraine and decision in recent years to leave arms control treaties "is a pattern of reckless behaviour, and it makes the world more dangerous."
"Russia continues to undermine security in Europe," Stoltenberg said.