QINGDAO, Aug. 23 (Xinhuanet) -- Chinese and Russian troops participating in a joint military exercise carried out a maritime blockade drill in the sea area to the southeast of the Shandong Peninsula Tuesday.

　　A few minutes after 11:00 a.m., Chinese battle planes provided air-cover for a formation of Chinese and Russian warships, and then a Chinese and Russian air force an echelon fought a fierce battle with enemy fighters in the air.

　　Chinese fighters blocked enemy battle planes with air-to-air missiles and took the air domination above the sea area. Meanwhile, the joint naval formation sank enemy submarines with deck-landing anti-submarine helicopters and depth bombs.

　　At 11:20, Chinese and Russian early warning planes and patrol planes guided the joint fleet to attack and destroy enemy warships. A Russian destroyer launched precision attacks on enemy targets, while Chinese warships fired missiles to destroy the enemy targets, using data and information transmitted by the patrol planes.

　　With the help the early warning system, the joint naval formation attacked enemy planes and missiles with ship-to-air missiles and quick-fire guns. They also interfered with enemy missiles of different types using infrared, photoelectric and platinic devices.

　　Participating in Tuesday's exercise were Russia's "Marshal Shaposhnikov" anti-submarine destroyer, a missile destroyer, and shipboard helicopters and A-50 early warning planes from the Russian Pacific Fleet. The Chinese contingent included three destroyers, three frigates, two submarines and 20 aircraft.