Russia China joint patrol of East China sea and sea of Japan

Subject : International Relations

Section: Places in news

Concept :

China and Russia conducted a joint air patrol on Tuesday over the Sea of Japan and East China Sea for a sixth time since 2019, prompting neighbouring South Korea and Japan to scramble fighter jets.
The joint aerial patrols, which began before Russia sent its troops in Ukraine and Beijing and Moscow declared their “no-limits” partnership, are a result of long expanding bilateral ties built partly on a mutual sense of threat from the United States and other military alliances.

Air Defence Zone

An air defence zone is an area where countries demand that foreign aircraft take special steps to identify themselves. Unlike a country’s airspace – the air above its territory and territorial waters – there are no international rules governing air defence zones.

Sea of Japan

The Sea of Japan, also known by various names, is a marginal sea that lies between the Korean Peninsula, Sakhalin, the Japanese archipelago, and the Russian Far Eastern mainland.
The Pacific Ocean and the sea are divided by the Japanese archipelago. Due to its almost full isolation from the Pacific Ocean, it has essentially no tides, similar to the Mediterranean Sea.
The faunal variety and salinity, both of which are lower than in the open ocean, are also impacted by this isolation. Large islands, bays, or capes do not exist in the sea.
The input and outflow through the straits that connect it to the Pacific Ocean and adjoining seas dictate the majority of its water balance.
Few rivers empty into the sea, and they only make up 1% of the overall water exchange. The high dissolved oxygen content of the ocean leads to high biological production.

East China Sea

A part of the Pacific Ocean and is a marginal sea in the east of China.
Bordering Countries: South Korea, Japan, the Republic of China (Taiwan) and the People’s Republic of China.
Towards the south of it is the South China Sea and to the west is the Asian continent.
Connects with the Sea of Japan through the Korea Strait and opens to the north into the Yellow Sea.