This speech is addressed to the Prophet Muhammad (saws).
هَلْ أَتَاكَ (Has there come to you): the question here carry the meaning of affirmation and reporting, meaning, has this story reached you and you have known about it? It is a well-known matter that people circulated and was conveyed by narrations and news.
الْجُنُودِ (the legions): the soldiers who dedicated themselves for defense, fighting and sacrifice.