Questions & Answers about De sender mat til fronten.
At the start of a sentence, De is usually just de with normal sentence capitalization, and de means they.
One important note: De with a capital D can also be a very formal way to say you in Norwegian, especially in older or very polite writing. In modern everyday Norwegian, that usage is uncommon.
So in most ordinary contexts, this sentence is understood as having de = they.
It is capitalized because it is the first word in the sentence.
If the pronoun appeared later in the sentence, it would normally be written de when it means they.
Example:
- Jeg vet at de sender mat til fronten. = I know that they are sending food to the front.
As mentioned, De with a capital D in the middle of a sentence can sometimes signal the formal you, but that is a separate issue.