The government was limited by the separation of powers because of the things of the 3 branches could do , and they can do checks and balances where one branch check the other 2 to see if one get over powered then the other 2 will find a way to keep the branch that is becoming overpowered into a range where its still controlled.
They felt like they could not live with the native americans in this time..
For all my APEX users the answer is Ireland (based on the choices given to me)
Spain set up the most amount of colonies, ranging from around the center of South America to about the present day US-Canadian border