Final answer:
France and the United States were involved in building the Panama Canal with the help of Great Britain.
Explanation:
France made an agreement with Colombia to purchase land in Panama to build a canal, but the project failed due to tropical diseases. The United States, after negotiating with Great Britain, continued the canal project in Panama. In 1904, they bought the French canal company's land and completed the construction in ten years with significant loss of lives.
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