NATO Secretary General Jens Stoltenberg is asking members of the military alliance to “commit to a multi-year financial pledge for Ukraine,” he said in Prague on Friday. “Since Russia’s full-scale invasion in 2022, allies have provided approximately €40 billion worth of military support to Ukraine each year,” Stoltenberg said. “We must maintain at least this level of support each year for as long as necessary.” NATO foreign ministers met in Prague on Thursday and Friday to discuss how they coordinate aid to Ukraine. The informal talks are intended to help prepare the ground for a summit of NAT…