Stoltenberg said that the Trident Juncture military exercise carried out in the south of Europe is a warning to all potential enemies of NATO, including Russia.
The active phase of the exercise started in Spain, Portugal and Italy on October 21 and will last until November 6. The training involves a total of 36,000 troops from 30 countries, including non-NATO Austria and Sweden, as well as 140 aircraft, 90 ships and submarines.
He also added that NATO is increasing its capability to respond to various crisis situations and raising the readiness of its forces to rapid deployment.
However, the alliance’s military activities caused strong discontent among residents of southern European countries where the training is taking place.
Last week, hundreds of anti-NATO protesters marched through the streets of the Spanish capital of Madrid, the Italian city of Naples and the Portuguese capital of Lisbon holding banners and chanting slogans against the Trident Juncture 2015 exercise and NATO in general.