Troops of a combined brigade under the PLA 82nd Group Army assemble at the training range on Jan. 4, 2021.

Ground crews assigned to an aviation brigade of the air force under the PLA Western Theater Command perform thorough inspections on a fighter jet prior to a real-combat flight training exercise.

A fighter jet attached to an aviation brigade of the air force under the PLA Eastern Theater Command reaches the runway and taxies to the takeoff point under command issued from the cockpit during a flight training exercise on January 4, 2020.

Soldiers assigned to a frontier defense regiment under the PLA Xinjiang Military Command carry out route march in the snow during an intensive training exercise on December 23, 2020.

A KJ-500 airborne early warning (AEW) aircraft attached to a naval aviation unit under the PLA Northern Theater Command taxis onto the flightline in preparation for a round-the-clock flight training exercise in late December, 2020.

A Y-8 anti-submarine warfare （ASW） aircraft attached to a naval aviation division under the PLA Eastern Theater Command is in a maritime patrol during a round-the-clock flight training exercise in mid December, 2020.

Paratroopers assigned to a special operations brigade under the PLA 82nd Group Army descend to the ground with parachutes during a recent parachuting drill.

The guided-missile destroyer Qiqihar (Hull 121) attached to the navy under the PLA Northern Theater Command steams forward during a maritime training exercise in mid December, 2020.

A ship-borne Z-9 helicopter attached to a frigate flotilla with the navy under the PLA Northern Theater Command prepares to land on the flight deck of the guided-missile frigate Zhangjiakou during a maritime training exercise in waters of the Yellow Sea in mid December, 2020.

Artillerymen assigned to a brigade under the PLA 76th Group Army fire an anti-tank missile during a live-fire test at the temperature of minus 17 degrees in mountainous area on December 17, 2020.

Armored vehicles attached to a combined arms brigade under the PLA 73rd Group Army participate in a driving skills training exercise in the woods on December 3, 2020.

Soldiers assigned to a brigade under the PLA 81st Group Army drive their armored personnel carriers on the snow ground during a driving skills training exercise on December 9, 2020.

Two fighter jets attached to an aviation unit under the PLA Air Force fly in line astern formation during a combat flight operation in 2020.

A main battle tank attached to a combined arms regiment under the PLA Xinjiang Military Command rumbles on the snow as it searches targets during a realistic training exercise in the severe cold weather on December 8. 2020.

Multi-type attack and transport helicopters attached to an army aviation brigade under the PLA 72nd Group Army hover over city and mountains during a tactical flight training exercise on December 16, 2020.

A cluster of WZ-10 attack helicopters attached to an army aviation brigade under the PLA 80th Group Army lift off simultaneously for a tactical flight training exercise on December 13, 2020.

A J-10 fighter jet attached to an aviation brigade of the air force under the PLA Southern Theater Command takes off for a formation flight training exercise on December 10, 2020.

Led by the guided-missile frigate Yongzhou (Hull 628), a frigate flotilla with the navy under the PLA Southern Theater Command steams in formation in an undisclosed sea area during a maritime training exercise in early December 2020.

A ground crew member assigned to an air station of the air force under the PLA Central Theater Command signals to guide an H-6H strategic bomber as it taxis down the flightline after flight training in late November, 2020.

Multi-type attack helicopters attached to an army aviation brigade under the PLA 72nd Group Army fly in formation for a flight training exercise on December 3, 2020.

The frigate flotilla steams in formation during a 9-day maritime training exercise in waters of the South China Sea in late November, 2020. They are attached to a frigate flotilla of the navy under the PLA Southern Theater Command.

A Type-96A main battle tank (MBT) attached to a brigade under the PLA 81st Group Army fires at mock targets during a live-fire training exercise in late November, 2020.

A J-16 fighter jet attached to an aviation brigade of the air force under the PLA Southern Theater Command takes off for an aerial combat flight training exercise in the eastern region of China's Yunnan Province.

Main Battle Tanks attached to a combined arms regiment under the PLA Xinjiang Military Command drive in formation en route to a predetermined destination during a driving skills training exercise on November 23, 2020.

Artillerymen assigned to the PLA Xinjiang Military Command operate a PL-66 152 mm towed gun-howitzer to attack mock targets during a live-fire test in the snow-covered plateau area with an average elevation exceeding 4,500 meters in mid-November, 2020.

Main Battle Tanks and Infantry Fighting Vehicles attached to a combined arms regiment under the PLA Xinjiang Military Command drive in formation en route to a predetermined destination in the falling snow at the foot of the Tianshan Mountain.

A ground crew assigned to an aviation brigade of the air force under the PLA Southern Theater Command performs last-minute inspections on a J-10 fighter jet prior to a fight training exercise in late November, 2020.

Infantry fighting vehicles attached to an armored regiment under the PLA Xinjiang Military Command drive in formation en route to a predetermined destination in the falling snow during a driving skills training exercise in northwest China's Xinjiang Uygur Autonomous Region on November 17, 2020.

Soldiers in MOPP gears use the chemical agent detector to locate the simulated toxic agents in the soil. The realistic training exercise is carried out by a chemical defense battalion with the navy under the PLA Southern Theater Command in late October.

A WZ-10 attack helicopter attached to an army aviation brigade under the PLA 80th Group Army lifts off for a round-the-clock flight training exercise on November 19, 2020.

Two fighter jets attached to an aviation brigade of the air force under the PLA Southern Theater Command taxi in close formation before takeoff for an aerial combat flight training exercise at a military airfield in the eastern regions of China's Yunnan Province.

Two J-10 fighter jets attached to an aviation brigade of the air force under the PLA Southern Theater Command soar into the air in formation during a combat flight training mission on November 17, 2020.

The amphibious dock landing ships Wuzhishan, Kunlunshan and Changbaishan attached to a landing ship flotilla with the navy under the PLA Southern Theater Command steam alongside in waters of the South China Sea during a maritime training exercise on November 18, 2020.

Two WZ-10 attack helicopters attached to an army aviation brigade under the PLA 73rd Group Army fly in extremely-low altitude during a penetrating flight training exercise on November 11, 2020.

Maintenance personnel assigned to a frigate flotilla with the navy under the PLA Northern Theater Command guide a ship-borne helicopter to lift off on the deck of the guided-missile frigate Dingzhou during a recent maritime live-fire training exercise.

A main battle tank attached to an armored detachment with a regiment under the PLA Xinjiang Military Command rumbles down from a sidehill during a driving skills training exercise on November 9, 2020.

Two J-10 fighter jets attached to an aviation brigade of the air force under the PLA Southern Theater Command taxi in close formation on the runway before takeoff during a flight training exercise on November 12, 2020.

Four J-10 fighter jets attached to an aviation brigade of the air force under the PLA Southern Theater Command fly in an echelon formation to designated airspace during a round-the-clock flight training exercise on November 10, 2020.

Artillerymen assigned to an artillery brigade under the PLA Xinjiang Military Command operate a self-propelled howitzer to attack a mock target during a live-fire test at the altitude of 5,200 meters in China's Xinjiang Uygur Autonomous Region in late October, 2020.

The guided-missile destroyer Chengdu (Hull 120) attached to a naval vessel training center under the PLA Northern Theater Command fires its close-in weapons system against mock aerial targets during a 3-day maritime training exercise from November 4 to 6, 2020.