What was the main difference between the mensheviks and the bolsheviks? a. the political and economic groups they belonged to b. the bolsheviks representing the upper and middle classes c. the mensheviks representing the upper and middle classes d. their beliefs about the means for bringing about political change

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).

the answer is a new goverment.