Europeans
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Farm animals gave the disease to European farmers, and they gave it to the Native Americans.
Answer:
The French colonized Vietnam in the mid 1800s, The decision to invade Vietnam was made by Napoleon III in July 1857. It was the result not only of missionary propaganda but also, after 1850, of the upsurge of French capitalism, which generated the need for overseas markets and the desire for a larger French share of the Asian territories conquered by the West.
Explanation: