Roma was facing a political crisis, many senators and politicians were fighting to see who gains power of Rome and Octavian the son of Caesar become the sole ruler of Rome and saved everyone from more bloodshed. (from the civil war)
Protect the bill of rights. Preserving freedom can be seen as securing the blessings of liberty. Maintaining peaceful nations can be seen as insure domestic tranquility. Defending against external enemies can be seen as providing for the common defense.
They were created to finance endeavors that were far too expensive for individuals to invest in and even governments to fund.
hope that helps!
If you meant that question literally then the answer is the America got all his land mostly by the battle of independence from Great Britain in which it got all the territory that the british took or claim after the french-indian war in which france and the british sign a treaty which stated that all territory gain from battle most be return. In which the british later =send a huge debt to the 13 colonies that stated that they most pay for all the damage done thanks to the french and indian war