Joint work within the CSTO brings visible practical results, Russian President Vladimir Putin said at the summit of the CSTO Collective Security Council in Yerevan.

"Of course, we see not only achievements, but also problems. Today our colleagues talked about this, today we will talk - I think without any cameras - about this and in more detail. Still, it is clear to us that joint work within the CSTO brings visible practical benefits, helps ensure the protection of national interests, sovereignty and independence of our countries," he said.