KYIV, March 10 – NATO Secretary General Jens Stoltenberg has warned that a Russian attack on the supply lines of allied countries supporting Ukraine with weapons and ammunition would be a dangerous escalation of the war raging in Eastern Europe, CBC News reported.

"The allies are helping Ukraine uphold their right for self defense, which is enshrined in the UN charter. Russia is the aggressor and Ukraine is defending itself. If there is any attack against any NATO country, NATO territory, that will trigger Article 5," Stoltenberg said in an interview with CBC News.