The treaty established the Louisiana-Texas border.
I not 100% but I think it is Spain.
After the Guadalupe-Hidalgo treaty in 1848.
The Red River
It made the Sabine river the eastern border It also made the top
Established the thirty-first parallel as the border between the United States and Spanish West Florida.
It was resolved when the two countries made a treaty.
Origan Treaty
The border chosen by President Polk was the Rio Grande. After the Mexico- American War that ended in 1848, the Rio Grande was established as the border between Mexico and the United States as agreed upon in the Treaty of Guadalupe Hidalgo.
The eastern border of the US was and is the Atlantic Ocean.
The Persian Gulf has no "south eastern border" -the south western border is Saudi Arabia and the Gulf states and Iran is the north eastern border.
no but it did to long island new york and cape cod and minnisota.