Russia is seemingly upping the stakes in Venezuela's standoff -- for friend and foe alike to see. In a deliberately visible event, two Russian aircraft reportedly landed at Simon Bolivar International Airport in Caracas on March 22. One plane arrived with 100 Russian military personnel, including the chief of staff of the ground forces, Gen. Vasily Tonkonshkurov, while the other landed with 35 tons of unspecified military equipment. According to an unnamed Venezuelan military official, the Russian forces are there as part of an agreement to assist the South American country in military training and engage in cooperation....