Because France wanted to trade with inner china. Ghey wanted to take Vietnam, because they thought that they could get to China through there, but they realized that they couldn't after the colonization was already complete. This was due to very high waterfalls.
France also wanted rubber, which was made by burning the sap from rubber trees found in Vietnam. At first they traded with the Vietnamese, but then this was an extra incentive, besides the route to china, to colonize Vietnam.
France also used social darwinism. Charles Darwin wrote a book called "origins of species", which promoted a theory called "survival of the fittest." The Europeans then decided that the most "fit" nations should rule the other "unfit" ones, which is what France decided to do with Vietnam. this craze which swept across Europe is known as "social darwinism."
France also thought that they were doing Vietnam a favor.
France
Some excellent sea ports in Vietnam, such as Cam Ranh Bay.
French exploration commenced in about 1859; total colonization was finished by about 1885.
Just before the Vietnam Conflict, Vietnam was a colony under French rule. Before that time, China had control over much of Eastern and Southeastern Asia.
France colonized the whole of Vietnam in 1855 after the Sino-French War.
France didnt want to only Belgian wanted to colonize congo
Germany didn't try to colonize France, Germany succeeded in colonizing France in 1940 after the French government surrendered to Germany.
1287
France did not colonize Cuba. Cuba was primarily colonized by Spain in the 16th century and gained independence from Spain in 1898.
1909
Spain, France and Portugal
France colonized three Asian countries completely: Vietnam, Cambodia, and Laos. France maintained mandates in the current countries of Lebanon and Syria (part of which is now in Turkey). France also had smaller colonies in India, such as Pondicherry, and a large sphere of influence in China.