Thus, according to Stoltenberg, Russian aggression against Ukraine is one of the main problems in the European security.
The terrorist group Islamic State and other extremist organizations on the NATO borders are another significant challenge.
After reading the annual NATO report in Brussels, Stoltenberg said that in the near future he would inform which of the NATO member states would participate in the new advanced rapid reaction forces. Their creation were agreed upon at the summit held in September last year.
The task of these forces is to cope with the "fundamental changes" in the security situation. NATO Secretary General also urged the Alliance member states to fulfill their commitment to increase defense spending for 2 percent of gross domestic product in the ten-year period.
In addition, Jens Stoltenberg announced his meeting with Russian Foreign Minister Sergei Lavrov at the Munich Security Conference next week.