“Three years ago, we completed the main task of our life. We restored our territorial integrity, which was violated for almost 30 years. We suffered aggression, occupation, ethnic cleansing, which was a big tragedy for our nation and a big humanitarian catastrophe. We tried for many years to find a peaceful solution to the conflict and to put an end to occupation by peaceful means,” said President Ilham Aliyev as he addressed the opening ceremony of the 74th International Astronautical Congress in Baku.