Theresa May has officially been sworn in as the new British Prime Minister. The appointment followed her predecessor David Cameron's resignation from the post after the Brexit campaign last month when he said, ""I do not think I can be the captain to take the country to its next destination."

Theresa May becomes British Prime Minister

May is the second female Prime Minister after Margaret Thatcher. In her first address as the new chief, May said, "The Government I lead will be driven not by the interests of the privileged few, but by yours." Getting straight to work, she has already made several key changes in her new cabinet, most noticeably appointing former London Mayor Boris Johnson as foreign secretary.

One of May's biggest task will be to navigate Britain's exit from the European Union. "As we leave the European Union, we will forge a bold new positive role for ourselves in the world, and we will make Britain a country that works not for a privileged few, but for every one of us. That will be the mission of the government I lead, and together we will build a better Britain."