U.S.-Spanish Territorial Disputes in 1783: West Florida, East Florida, Mississippi Valley, and Texas

In 1783, both nations claimed:

1. West Florida (parts of modern FL, AL, MS): U.S. cited Treaty of Paris; Spain called it part of Louisiana.
2. East Florida (modern FL): Spain held since 1500s; U.S. argued Louisiana Purchase (1803) included it.
3. Mississippi River Valley: U.S. claimed via Louisiana Purchase; Spain held West Florida portion.
4. Texas: Spain claimed as northern frontier; U.S. considered it part of Louisiana Purchase.

Disputes fueled tensions leading to War of 1812; resolved via Treaty of San Lorenzo (1795) and Adams–Onís Treaty (1819).