Balboa, who found what is today the pacific ocean, was charged with against spain.

Vasco Nunez de Balboa, a Spanish conquistador of the 16th century is recognized for his expeditions into the New World for the empire of Spain. He became so powerful and influential following his many conquests that a rival Pedro Arias Davila, serving as a Spanish governor had him executed on false charges of treason. As a result of Balboa's conquests, specifically claiming the Pacific Ocean for Spain, allowed for expansion, conquest, and colonization of the New World. 

yes.

explanation:

because it let the japanese know who had the upper hand in the war.

a system of cooperative federalism emerged, as the powers of the federal government expanded.