Answer:
The inadequate behaviour of the Tsar caused the collapse of Tsarist regime. Nicholas II`s actions and decisions caused an economic crisis in the country and destroyed his own image in the eyes of the people. ... Tsar`s decision to start the Russo-Japanese War (1903-1905) also was disastrous for the Empire.
The United States increase its trading power in Latin America and gain influence over several countries
I`d go with the last one, to limit the President`s power. From my understanding, the section given basically lists out the conditions of when the President can send out troops. Hope this helped!