NATO’s chief Jens Stoltenberg said on Monday that Western allies have delivered more than $70 billion in military aid to Ukraine over the last year since the Russian invasion started.

“There are no signs that President Putin is preparing for peace. He is preparing for more war,” Stoltenberg warned, speaking at a news conference in Brussels.

"We do not know when this war will end. But when it does, we will need to put in place arrangements so that Ukraine can deter future aggression. And history does not repeat itself. We cannot allow Russia to continue to chip away at European security," he said.

Stoltenberg added that allies have delivered 65 billion euros (around $70.7 billion) in military aid, and said he welcomed the recent arrival of modern battle tanks and other armored vehicles in Ukraine.

“This can make a real difference on the front lines and allow the Ukrainian forces to liberate more territory,” he said.

The NATO head affirmed that the alliance’s support is for the “long haul” and said, “we will discuss how we can step up our support, including by continuing to strengthen Ukraine’s armed forces and supporting the transition from Soviet-era to NATO equipment and doctrine.”

Stoltenberg also said allies must address other threats and challenges, citing instability, terrorism, and the growing influence of Iran, Russia, and China. He urged allies to invest more in defense to tackle all these wide range of issues.