NATO has “not delivered what we have promised” and delays in aid to Kyiv have “put a dent” into Ukraine’s trust of the military alliance, Secretary General Jens Stoltenberg said on April 30. Ukraine has faced a worsening situation on the battlefield in recent weeks as well as an increase in successful Russian aerial attacks, both compounded by delays in Western assistance, particularly the months-long wait for the latest U.S. aid package. The European Union also fell short of its target of providing Ukraine with one million rounds of artillery shells by March. Speaking to Reuters as he travele…