While the “when we have an army” comment is pertinent coming from someone who has pledged fealty to a politician and is actively soliciting other vassals to do likewise, it’s entirely possible the 62 year old butterball saying it wants to round up an “army” of tiny minority kids to plant a garden in some local park using a government grant.
He doesn’t really strike me as an urban warfare specialist.
He used the verb fight, not garden.