Final answer:
Panama is the country that has David, Colon, a port city on the Caribbean entrance to the namesake Canal.
Step-by-step explanation:
The country that has David, Colon, a port city on the Caribbean entrance to the namesake Canal is Panama. The Panama Canal is an important shipping route that connects the Atlantic Ocean and the Pacific Ocean.
It was first built by the French, but later completed by the United States. The canal shortened the shipping distance between California and New York and has had a significant impact on global trade.