A Swedish Gripen jet, left, and a Finnish F-18 Hornet take part in joint exercises over the Arctic Circle towns of Jokkmokk in Sweden and Rovaniemi in Finland on March 25, 2019. (Photo: AFP/ VNA)

The countries sending forces to participate in the exercise include Belgium, the Netherlands, Norway, Turkey, and the UK.

Sweden is playing the role of the host country of the BALTOPS 51 exercise.

The two main phases of the exercise include training activities to improve combat capabilities and training in coordination between forces.