Final answer:
The Japanese forced the Koreans to build, sail, and provide provisions for the boats in Korea, leading to costly consequences for the country.
Step-by-step explanation:
The Japanese forced the Koreans to build, sail, and provide provisions for the boats. This task was incredibly costly and nearly ruined Korea. In 1876, Japan imposed the Japan-Korea Treaty of Amity on Korea through the threat of military force. The treaty allowed the Japanese to establish trading ports in Korea and declared Korea's independence from China.