Answer:
All weapons helped soldiers to defend more effectively
The documented that upheld George Washington's policy of the United States not getting entangled in internal European Affairs and existing European Colonies for many years was Known as the Monroe Doctrine. The intent and impact of the Monroe Doctrine was to speerate the spheres of influences between the old world (Europe) and the New world ( America).
It was a mixture of various reasons, although for the Spanish and Portuguese it was a question of reaching India for spice trades after the embargo instated on them by the Ottoman Turks.
The Portuguese went around Africa, and the Spanish tried sailing west across the barren ocean, and accidentally discovered America through Columbus.
