Vietnamese nationalism

Vietnamese nationalism () is a form of nationalism that asserts the Vietnamese people are a nation and promotes cultural unity in Vietnam. It encompasses a broad range of ideas and sentiments harbored by the Vietnamese people for many centuries to preserve and defend the national identity of the Vietnamese nation.
Vietnam is part of the Sinosphere, and Vietnamese is recognized as the only language in the country. Most Vietnamese nationalism focuses on the nation's military history, although there are cultural and civil aspects to it as well. 
Most of Vietnamese modern nationalist concepts focus on China, which has fueled the anti-Chinese sentiment in Vietnam. It is to be noted that there were other anti-Cambodian and anti-French efforts in the past.
History.
Early Vietnamese and Chinese relations (111 BC - 19th Century).
During the age of the ancient states like Âu Lạc and Nanyue, nationalism among the population was weak, as there was no centralized Vietnamese nation. However, nationalism grew following the Chinese millennium in Vietnam. Several attempts against Chinese occupation resulted in many wars that happened throughout thousand years of Chinese rule, after which Vietnam finally regained independence in the 10th century following the battle of Bạch Đằng. Lý Thường Kiệt's famous declaration of Vietnam's independence, Nam quốc sơn hà ("Mountains and Rivers of the Southern Country"), is a patriotic and nationalistic poem that still lives on in Vietnamese society generations later. Nguyễn Trãi's Bình Ngô đại cáo is considered the other declaration of Vietnam's independence against the Chinese Dynasties.
In the 17th century, in the North during the time of the Trịnh Lords, the Trịnh mandated that the Chinese entering the country had to strictly follow Vietnamese customs and refrain from contacts with the local Vietnamese populace in the cities. However, in the south, the Nguyễn Lords favored the Chinese, allowing many Chinese to settle in new conquered land from the Khmer Kingdom. The immigrated Chinese scholars even became Nguyễn Lord officials. The Nguyễn Dynasty under that influence once saw themselves as "Han nhan" (Chinese people).
After defeating the Tay Son, The Nguyễn Lord formed the Nguyen Dynasty. The Nguyen Dynasty completed the Vietnamese "March to the South" or Nam tiến. Over the span of 700 years, starting from the Lý dynasty, the dynasty gradually invaded and colonized the entire state of Champa and parts of the Khmer Empire. Under the Nguyễn dynasty (the dynasty most sinicized and influenced by the teachings of Confucius), they attempted to assimilate all of the ethnic minorities in the territories that they had captured by forcing them to adopt sinicized Vietnamese customs. Copying the Chinese idea of Central Plain, the Nguyễn dynasty saw themselves as belonging to a superior culture, unlike the Indianized states of Champa and the Khmer Empire. They saw themselves as carrying out a civilizing mission against the minorities who were seen as barbarians. Considering themselves as superior due to being sinicized, members of the Vietnamese royalty looked down upon those that were non-Vietnamese as inferior.
Later on, after the Nguyễn dynasty began ruling Vietnam, the dynasty had been using the Vietnamization concepts on the non-Vietnamese people. During the nam tiến period of the Nguyễn Dynasty, Emperor Gia Long stated that "Hán di hữu hạn" 漢夷有限 ("the Vietnamese and the barbarians must have clear borders") when differentiating between Khmer and the Vietnamese. Emperor Minh Mạng, the son of Gia Long, stated with regards to the Vietnamese forcing the ethnic minorities to follow Sino-Vietnamese customs that "We must hope that their barbarian habits will be subconsciously dissipated, and that they will daily become more infected by Han [Sino-Vietnamese] customs."
Modern Vietnamese nationalism.
After the Third Indochina War in 1979, Vietnamese nationalists focused on anti-China sentiment. Anti-China beliefs became more popular because of South China Sea/Vietnam East Sea dispute. As for the French invasion, many resistances came around but failed. However, Vietnamese nationalism changed to focus on an independent Vietnam.
Economy.
There has been a growing movement among Vietnamese by boycotting Chinese products, using Vietnamese-made products instead. This is called "made in Vietnam" to counter with "made in China".
Culture.
Despite of being part of Sinosphere cultural influence and sharing many cultural aspects such as Confucianism, and having Chữ Nôm as its former writing script, Vietnamese nationalists mostly refuse to accept Chinese influence on Vietnam. They have a belief that the Vietnamese already had a profound culture before Chinese influence i.e Đông Son, rice cultivating. Adding with the interactions and later conquests of Indianized Kingdom of Champa, Vietnamese nationalists believe it is a major cross-road of two civilizations rather than one. 
Vietnamese textbooks also refer to the influence of China but refuse to recognize Chinese elements in Vietnamese nation. The current north Vietnam was part of the land of Bai Yue tribes, so they believe the similarities are because of the Chinese culture was influenced by the culture of Bai Yue tribes when their land was conquered by the Han Chinese.
Military.
For much of its history being razed by wars, the Vietnam developed its nationalism based on its successful history of warfare. Many Vietnamese generals are seen as nationalistic heros in Vietnamese society, such as Trần Hưng Đạo, the famous general who stood up to the mighty Mongol Empire by successfully repelling the three Mongol invasions of Vietnam in 1258, 1285, 1287–88 and Nguyễn Huệ, a revered Emperor and general who defeated the Qing Dynasty of China in the Battle of Ngọc Hồi-Đống Đa, considered to be one of the greatest military victories in Vietnamese history. Both Trần Hưng Đạo and Nguyễn Huệ have several streets named after them and statues erected to honor them, and both are listed as being among the greatest generals in history.
Vietnam also heavily honors its long lists of generals in ancient Vietnamese history that fought against Chinese expansionism, such as the Trưng Sisters and Lady Triệu, who were female generals that led major independent movements against Chinese occupation. Ngô Quyền is well honored for being the first to successfully defeat the Southern Han of China at the Battle of Bạch Đằng in 938 and establishing Vietnamese independence, Lê Hoàn for defeating the Song dynasty at the same river in 981, and Lê Lợi who liberated Vietnam by defeating the Ming dynasty and founding the Lê dynasty.
A sense of pride has also developed in the Vietnamese resistance in the 20th century. Ho Chi Minh is seen as the founder of modern Vietnam after his victories against the Japanese in World War II and against the French in the First Indochina War, declaring the Democratic Republic of Vietnam. Võ Nguyên Giáp is recognized as the most successful general in current Vietnamese history, emerging victorious in not only the two aforementioned wars, but also in the Vietnam War against the Americans, that allowed the unification of the country, and the Sino-Vietnamese War against the Chinese.
Education.
Vietnamese national pride is heavily promoted in Vietnamese textbooks, especially of its development and its heroism.
Many Vietnamese stories are still heavily mentioned in the youth education system and among the older generations which have been regarded as a major factor that keeps Vietnamese nationalism alive.
Greater Vietnam.
The ideology of Greater Vietnam is a popular concept among some popular Vietnamese nationalist parties that claim the territory of Southern China (Yunnan, Guangxi, Guangdong and Hainan), as well as Laos, Cambodia and Thailand's Isan to Myanmar's Shan State as part of greater Vietnamese sovereignty. The idea is just a newly developed ideology following the beginning of 20th century, but has gained popularity in the aftermath of 2014 Vietnam anti-China protests.
According to Vietnamese nationalist groups, these territories have been traditionally Vietnamese until expansionism from foreign powers claimed them, and Vietnam must retake it. Because of this, Vietnam had carried a long-time conquests and conflicts with neighboring countries, as well as assimilations and even genocides due to its irredentist sentiment.