How did the US coastline provide an advantage for the south during Civil War

i think is more the 2.) It allowed a quick escape from most cities in the South.

Explanation:

It allowed the South easy access to inland cities in the North. It allowed a quick escape from most cities in the South. It allowed Southern factories to ship goods to Europe.

hhebeueubevcje. he. me. e beben

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.