STUTTGART, Germany — NATO nations have agreed to a new action plan for bolstering the alliance’s industrial base, as governments scramble to restock their weapon arsenals while simultaneously sending military aid to Ukraine. Nestled in the recent Vilnius, Lithuania, summit’s communique as line item 36, the document describes the Defence Production Action Plan as a way to leverage NATO’s role as “a convener, standard-setter, requirement setter and aggregator, and delivery enabler to promote