Just war means a war of oppressed peoples waged to liberate the nation from foreign domination or war against aggression to protect independence and social progress ”. Example 1: The Vietnamese people’s resistance war against France and America. This is a just war with the nature of revolution for national liberation and protection of national independence. The victorious resistance war completely liberated our country from the invasion of the French colonialists and the American imperialists, and our country gained complete independence. The success of the Vietnamese revolution encouraged and promoted the strong development of the national liberation movement in the world, completely undermining imperialism.
The biggest wars, the most fierce, most destructive and destructive to human life are the two World War I (1914-1918) and World War II (1939-1945). The cause of each war is the irreconcilable political conflict, the forced use of violence to resolve conflicts between factions within the same country or between countries, between coalitions. The conduct of any war is determined by the political lines of the participating countries. For example: Germany launched World War II with a plot of hegemony, domination and enslavement of other peoples in the world.