* As an adjective: Generally, you do not capitalize "foreign" when used as an adjective describing a noun.
* Example: "She studied foreign languages."
* As part of a proper noun: You do capitalize "foreign" when it's part of a proper noun, like the name of an organization or a specific event.
* Example: "The Foreign Office issued a statement."
* At the beginning of a sentence: You do capitalize "foreign" when it starts a sentence.
* Example: "Foreign investment in the country has increased."
So, in most cases, "foreign" is not capitalized. However, always consider the context to determine the correct capitalization.