The Kremlin placed its powerful fighter jets on combat alert as Russia’s large-scale military exercise, Vostok-2022, commenced Wednesday.

According to TASS, the Russian Defense Ministry ordered the Eastern Military District fighter aircraft—including crews of Su-35S, Su-30SM, and MiG-31—to be on combat alert at operational airfields in the Khabarovsk, Primorsky, and Kamchatka Regions and the Chukotka Autonomous Region.

The ministry stated that the fighter jets would practice intercepting aerial targets, providing cover for attack aircraft, carrying out air strikes against ground targets, and providing air support for troops during the drills.

“The crews of Su-35S, Su-30SM and MiG-31 fighters of the Eastern Military District went on air defense combat alert at operational aerodromes in the Khabarovsk, Primorsky and Kamchatka Regions and the Chukotka Autonomous Region as part of the Vostok-2022 strategic command and staff exercise,” the ministry said in a statement.

Furthermore, ground aviation unit personnel will perform a series of aircraft maintenance procedures to prepare the fighters for missions.

Vostok-2022 strategic command and staff drill will be held in Moscow and run from September 1-7. The week-long military exercise, which will be led by Chief of Russia’s General Staff Valery Gerasimov, will include defensive and offensive drills at the Eastern Military District’s Burduny, Goryachiye Klyuchi, Knyaze-Volkonsky, Lagunnoye, Sergeyevsky, Telemba, and Uspenovsky training grounds, as well as maritime and coastal areas in the Sea of Okhotsk and the Sea of Japan.

In addition, over 50,000 troops will participate in the event and about 5,000 pieces of armament and military hardware, including 140 aircraft, 60 combat ships, gunboats, and support vessels.

Amid the invasion of Ukraine, Russia will dispatch thousands of its troops east to participate in this year’s strategic drills in cooperation with its strongest partner, China, and other allied countries, including Azerbaijan, Algeria, Armenia, Belarus, India, Kazakhstan, Kyrgyzstan, China, Laos, Mongolia, Nicaragua, Syria, and Tajikistan.