It was typically John Adams.
is the salary per year I need to know that is it a monthly salary or annual
The fact that the imperator spent a lot of resources for wars
It remade Europe after the downfall of French Emperor Napoleon I and tried to restore old boundaries as well as resizing the main powers so they could balance each other and remain at peace.
Some Americans thought that making California a part of the US would strengthen the security of the nation because there was going to be fewer war threats by adding more territory.
Explanation
They believed that it would protect them more from war threats because California provided a coastline to protect the country, which added more territory. Having the control of it, they could build a defense against other countries who would want to invade from the west side.
In addition, California's natural resources such as silver, gold, and fertile soil were very important for the nation, which was in a growing process.