The difficult situation on the frontline in Ukraine is caused by the fact that NATO allies have not fulfilled their promises and have not supplied Kyiv with the necessary weapons, NATO Secretary General Jens Stoltenberg says at the NATO Parliamentary Assembly in Bulgaria. According to Stoltenberg, Ukrainians have liberated 50% of their territory with the military support of NATO allies. Kyiv has managed to sink many Russian ships in the Black Sea, open a corridor for the export of grain and other goods, and inflict heavy losses on Russian invading forces. “That’s the good news. The problem is …