It’s the last one I am pretty sure
The Enola Gay was the plane for Hiroshima.
The main way in which the Marshall Plan impacted the European economy in the post-World War II era was by providing billions of dollars of aid to make sure that Europe didn't fall into the kinds of conditions that lead to tyrannical leaders.
His square plan targeted trust regulation,labor relations,and public health and conversation
si,se han hecho diferentes intentos como lo es mercosur pero de eso se puede deducir que nos falta mucha unidad ya que no se les da la mayoría de las veces la relevancia que se merecen a las relaciones internacionales
espero haberte ayudado:)