台湾总统赖清德表示，如果中国对台湾的主权主张是基于领土完整，那么中华人民共和国也应该收回 19 世纪根据 1858 年《瑷珲条约》割让给俄罗斯的地区。《瑷珲条约》被认为是所谓的不平等条约之一，当时最强大的国家使用军事力量向弱小的国家强加条件。根据《瑷珲条约》，中国将现在俄罗斯远东地区的大片土地割让给俄罗斯帝国。两年后，根据 1860 年《北京条约》，中国再次将现在的滨海边疆区割让给俄罗斯。
此外，满族赋名海参崴满语名「ᡥᠠᡳᡧᡝᠨᠸᡝᡳ」和汉语名「海参崴」。 「海参崴」作为其最早的中文叫法，亦被华人沿用至今。 1860年，《北京条约》签订前三月，俄国侵占了此地区，更名为「符拉迪沃斯托克」（Владивосток；Vladivostok），意为「东方统治者」或「征服东方」，也译「鎭东府」「东方的王后」。2020年7月2日，俄罗斯符拉迪沃斯托克市举行建市160周年庆祝活动。中国国际电视台（CGTN）记者沈世伟表示，庆祝符拉迪沃斯托克建市日让中国人想起了“1860年那段屈辱的日子”。
就领土完整而言，中国从英国手中收回了香港。但赖清德说：“为什么中国不收回《瑷珲条约》中被俄国占领的土地？俄国现在弱了，对吧？《瑷珲条约》是清朝签订的——你可以要求俄国归还土地，但你没有。所以很明显，中国不想因为领土问题而入侵台湾。”
Taiwanese President Lai Ching-te stated that if China's claims to Taiwan are based on territorial integrity, the People’s Republic of China should also take back regions ceded to Russia in the nineteenth century, under the 1858 Treaty of Aigun. The Treaty of Aigun is considered one of the so-called unequal treaties, where the then-greatest powers used military force to dictate terms to less powerful countries. Under the Treaty of Aigun, China ceded a huge swathe of land to the Russian Empire in what is now the Far East of Russia. Two years later, under the 1860 Beijing Treaty, China again ceded the region of what is now the Primorsky Krai to Russia. (Ukrainska Pravda, 09/03/2024)
Further, the Manchus named Vladivostok "ᡥᠠᡳᡧᡝᠨᠸᡝᡳ" in Manchu and "Vladivostok (Haishenwei)" in Chinese. "Vladivostok" is its earliest Chinese name and is still used by the Chinese today. In 1860, three months before the signing of the Treaty of Beijing, Russia invaded the area and renamed it "Vladivostok" (Владивосток; Vladivostok), which means "ruler of the East" or "conquer the East", also translated as "The Office Managing East" or "Queen of the East". (海參崴 - 維基百科，自由的百科全書 (wikipedia.org)) On July 2 of 2020, the Russian city of Vladivostok was celebrating 160th anniversary of its founding day. Shen Shiwei, a reporter for the state-owned broadcaster CGTN said that the celebration of the founding day of Vladivostok reminded the Chinese of "those humiliated days in the 1860. (Financial Express. 07/07/2020)
Regarding territorial integrity, China reclaimed Hong Kong from UK. But "why doesn’t China reclaim the lands occupied by Russia that were ceded in the Treaty of Aigun? Russia is weaker now, right? The Treaty of Aigun was signed during the Qing dynasty - you can ask the Russians to return the land, but you don't. So it's clear that China does not wish to invade Taiwan for territorial reasons," said Lai Ching-te. (Essanews.com, 09/02/2024)
