The philosophy that Berkeley espouses based on what he said is the philosophy known as Subjective Idealism.
<h3>What is subjective idealism?</h3>
This is a philosophy that believes that all of existence is simply made up of the minds of people and their private experiences and that all we know is based on our experience.
This is the view of Berkeley because he believed that we cannot make sense of anything that we haven't experienced privately.
It would get them noticed by other countries, it will allow them to send more supplies and troops; generating allies. Allies they needed especially going against the strong military of England at the time.