Los estados del Salvador = The Saviour's states (referring to Jesus)
Los estados de El Salvador = The states of El Salvador (referring to the country)
In Spanish, when the preposition "de" is followed by "el" (the masculine singular form of the definite article "the"), both words are merged into a new word: "del", called "contracción" (contraction). This doesn't happen when the article is included in the name of a country, region, mountain, etc.
There is no reason to capitalise the word "estados."
· 3 weeks ago