ترجمة - بلغاري-انجليزي - Да живее Америка!

Hi Via,
Do you mean: "Long live America!"?

Via?

Yes, is it wrong the way I've translated it?

Actually, "Viva!" is an interjection (not a verb) used to express acclamation, salute, or applause.
Since rule#4 demands a conjugated verb I'd use "Long live..."

See what I mean?

This rule pertains to the source texts, not translations, as far as I remember...

It applies to both, dear.