Well buddy, it's up to you. My advice: do your own research and make your own conclusions. There are a number of books on Rothschilds and a ton of Google hits.

Generally to understand the history of any advanced civilization you have to follow the money. And since 1815 Rothschild have had enough capital and reputation amongst private investors to decide who rules in most countries, which country has the credit to start a war, which country/alliance has the money to win a war, etc