<span>D) The President commands the military but cannot go to war without Congress’s approval.
It prevents the country from being drawn into war by a war mongering president. Congress was the framers intention to control a rogue president, and to steer national values.
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Anvil is a tool used by blacksmiths, and it is the surface on which the object is placed which is worked on with a hammer- stroked with a hammer.
von Bülow meant (in 1899) that Germany will either have to colonize others ( be the hammer) or it would have to risk being colonized itself (being the anvil), hence showing the need for Germany to participate in colonization.