May 13, 1938 is when armistice Day was declared
The answer to the given question is letter D. <span>promote and regulate trade between nations.</span>
One of the main goals of international economic organizations is to promote and regulate trade between nations.
>International organizations<span> are legally constituted entities that operate across several nations</span>
The main <span>effect of Germany's decision to allow *unrestricted* submarine warfare was that the United States was drawn into World War I--since this warfare led to the sinking of the Lusitania, which was carrying many American passengers. </span>
