China–Russia border in the context of "Khabarovsk"

The People's Republic of China (PRC) shares land borders with 14 countries (tied with Russia for the most in the world): North Korea, Russia, Mongolia, Kazakhstan, Kyrgyzstan, Tajikistan, Afghanistan, Pakistan, India, Nepal, Bhutan, Myanmar, Laos, and Vietnam, and with two Special administrative regions of China, Hong Kong and Macao. The land borders, counterclockwise from northeast to southwest, are the China–North Korea border, the eastern segment of the China–Russia border, the China–Mongolia border, the western segment of the China–Russia border, the China–Kazakhstan border, the China–Kyrgyzstan border, the China–Tajikistan border, the China–Afghanistan border, the China–Pakistan border, the western segment of the China–India border (the most contested of the Sino-Indian border dispute), the China–Nepal border, the central segment of the China–India border (Sikkim), the China–Bhutan border, the eastern segment of the China–India border, the China–Myanmar border, the China–Laos border, the China–Vietnam border, a 3-kilometre (1.9 mi) internal border with Macau, a Portuguese territory until 1999, and a 30-kilometre (19 mi) internal border with the special administrative region of Hong Kong, which was a British dependency before 1997.

To the west, China has maritime borders with North Korea, Japan and contested limits with Taiwan and other countries in the South China Sea, among other territorial disputes.

Inner Mongolia, officially the Inner Mongolia Autonomous Region, is an autonomous region of China. Its border includes two-thirds of the length of China's border with the country of Mongolia, as well as a small section with Russia (Zabaykalsky Krai). Its capital is Hohhot; other major cities include Baotou, Chifeng, Tongliao and Ordos.

The autonomous region was established in 1947, incorporating the areas of the former Republic of China provinces of Suiyuan, Chahar, Rehe, Liaobei, and Xing'an, along with the northern parts of Gansu and Ningxia.

Vladivostok (/ˌvlædɪˈvɒstɒk/ VLAD-iv-OST-ok; Russian: Владивосток, lit. '"Ruler of the East"', IPA: [vlədʲɪvɐˈstok] ) is the largest city and the administrative center of Primorsky Krai and the capital of the Far Eastern Federal District of Russia. It is located around the Golden Horn Bay on the Sea of Japan, covering an area of 331.16 square kilometers (127.86 square miles), with a population of 603,519 residents as of 2021. Vladivostok is the second-largest city in the Far Eastern Federal District, as well as the Russian Far East, after Khabarovsk. It is located approximately 45 kilometers (28 mi) from the China–Russia border and 134 kilometers (83 mi) from the North Korea–Russia border.

Vladivostok was historically part of Outer Manchuria. Shortly after the signing of the Treaty of Aigun between Qing China and the Russian Empire and affirmed by the Convention of Peking – from which it is also known as the Amur Annexation – the city was founded as a Russian military outpost on July 2, 1860. In 1872, the main Russian naval base on the Pacific Ocean was transferred to the city, stimulating its growth. In 1914 the city experienced rapid growth economically and ethnically diverse with population exceeding over 100,000 inhabitants with slightly less than half of the population being Russians. During this time, large Asian communities developed in the city. The public life of the city flourished; many public associations were created, from charities to hobby groups. After the outbreak of the Russian Revolution in 1917, Vladivostok was occupied in 1918 by White Russian and Allied forces, the last of whom, from the Japanese Empire, were not withdrawn until 1922 as part of its wider intervention in Siberia; by that time the antirevolutionary White Army forces had collapsed. That same year, the Red Army occupied the city, absorbing the Far Eastern Republic into the Russian Soviet Federative Socialist Republic. Following the dissolution of the Soviet Union in 1991, the city became a part of the Russian Federation.

Heilongjiang is a province in northeast China. It is the northernmost and easternmost province of the country and contains China's northernmost point (in Mohe City along the Amur) and easternmost point (at the confluence of the Amur and Ussuri rivers).

The province is bordered by Jilin to the south and Inner Mongolia to the west. It also shares a border with Russia (Amur Oblast, Jewish Autonomous Oblast, Khabarovsk Krai, Primorsky Krai and Zabaykalsky Krai) to the north and east. The capital and the largest city of the province is Harbin. Among Chinese provincial-level administrative divisions, Heilongjiang is the sixth-largest by total area, the 20th-most populous, and the second-poorest by GDP per capita after only Gansu province.

The Argun /ɑːrˈɡuːn/ or Ergune (Chinese: 额尔古纳河) is a 1,620-kilometre (1,010 mi) long river that forms part of the eastern China–Russia border, together with the Amur. Its upper reaches are known as the Hailar River (海拉尔河) in China. The Argun marks the border (established by the Treaty of Nerchinsk in 1689) between Russia and China for about 944 kilometres (587 mi), until it meets the Amur.

Blagoveshchensk (Russian: Благовещенск, IPA: [bləɡɐˈvʲeɕːɪnsk], lit. 'City of the Annunciation') is a city and the administrative center of Amur Oblast, Russia. It is located at the confluence of the Amur and the Zeya Rivers, opposite the Chinese city of Heihe.

The Amur has formed Russia's border with China since the 1858 Aigun Treaty and the 1860 Treaty of Peking. The area north of the Amur belonged to the Manchu Qing dynasty by the Treaty of Nerchinsk of 1689 until it was ceded to Russia by the Aigun Treaty in 1858.

East Kazakhstan Region (Kazakh: Шығыс Қазақстан облысы, romanized: Şyğys Qazaqstan oblysy; Russian: Восточно-Казахстанская область, romanized: Vostochno-Kazakhstanskaya oblast) is a region of Kazakhstan. It occupies the easternmost part of Kazakhstan, and includes parts of the Irtysh River, Lake Markakol, and Lake Zaysan. Its administrative center is Öskemen (also known as Ust'-Kamenogorsk). The region borders Altai Krai and Altai republic in Russia in the north and northeast and the People's Republic of China, via Xinjiang, in the south and southeast. The easternmost point of the Oblast is within about 55 kilometres of the westernmost tip of Mongolia; however, Kazakhstan and Mongolia do not share a common border, the two countries being separated by a small part of the China–Russia border.

The region was created by the merger of two Soviet-era Kazakhstan oblasts: the old Vostochno-Kazakhstanskaya (East Kazakhstan) Oblast and Semipalatinsk Oblast. On 17 March 2022, it was announced that East Kazakhstan region would be divided, creating the Abai Region. This came into force on 8 June 2022, with eight districts of East Kazakhstan Region being transferred to the new region. The new border dividing Abai Region and East Kazakhstan region roughly corresponds to the border that existed between the two Soviet-era oblasts.