BELGRADE – Theresa May has become Britain’s second ever female prime minister after being appointed by Queen Elizabeth II, who earlier Wednesday accepted the resignation of outgoing PM David Cameron.

After her appointment, May promised that Britain will leave the EU and will be able to “forge a bold new positive role” for itself.

“Following the referendum we face a time of great national change,” May said. “I know because we’re Great Britain that we will rise to the challenge. As we leave the European Union, we will forge a bold new positive role for ourselves in the world,” she said before entering the prime minister’s official residence at No. 10 Downing Street.

Speaking live on television in Downing Street, May, also the new leader of the Conservative Party, said that her cabinet will put ordinary citizens and their interests before those of the wealthy.

“The government I lead will be driven not be the interests of the privileged few, but by yours. We will do everything we can to give you more control over your lives,” she said.

“When we make the big calls we’ll think not of the powerful but you, when we pass new laws we’ll listen not to the mighty but to you, when it comes to taxes we’ll prioritize not the wealthy but you,” the new PM added.

May, 59, has become the second female British prime minister after Margaret Thatcher, who served in office from 1979-90.

There was a small protest near Downing Street on Wednesday, with its participants calling for a general election to be held in the country instead of the appointment of a new Tory PM, Reuters reported.

Over a dozen demonstrators were dressed in costumes of Theresa May and carried various signs, including ones reading, “We don’t want another 3 years of this,” and “May the farce be with you.”

Theresa May’s new cabinet is already starting to take shape, with Reuters reporting the resignation of finance minister George Osborne.

Osborne will be replaced as Chancellor of the Exchequer by Philip Hammond, who was Foreign Secretary in Cameron’s government.

The White House has congratulated May on taking up the PM’s duties, expressing confidence that she be able to steer Britain through its negotiations on leaving the EU.

“Based on the public comments we’ve seen from the incoming prime minister, she intends to pursue a course that’s consistent with the prescription that President Obama has offered,” said Josh Earnest, the White House spokesman.

Earlier Wednesday, Queen Elizabeth II officially accepted the resignation of outgoing Prime Minister David Cameron. A statement released by Buckingham Palace said the monarch was “graciously pleased to accept” Cameron’s notice of departure.