The german plan in world war 1 to fight russia and france simultaneously was known as the

 The Schlieffen Plan

Context/explanation:

The military plans laid before World War I presupposed a major war between the countries which were tied together with alliances.  Because the Triple Entente had Britain, France and Russia as allies, Germany thought if a war began it would need to fight on two fronts -- west and east.  So German Field Marshall Alfred von Schlieffen drew up war plans that said attack France first, quickly, and then hold that territory while deploying forces to contend with Russia in the east.   In 1914, when Russia mobilized troops to come to the aid of Serbia against Austria-Hungary in 1914 (after the assassination of Austria's archduke by Serbian radicals), Germany declared war on Russia.  And when Germany went to war, the first thing it did was to march through Belgium to go and attack France.  Up to that point France had not had involvement in the conflicts that had begun in the Balkans.  Thus the war spread and quickly became a more global conflict.

answer; ///i believe that the correct answer is (b); ///the candidate must be a native born american citzen;

b. 155 enlisted men and no officers