Britain’s new Prime Minister Andy Burnham entered 10 Downing Street on Monday, making few detailed policy statements but offering plenty of clues about the nature of his premiership.

Andy Burnham begins his first full day as U.K. prime minister on Tuesday, after entering 10 Downing Street on a wave of enthusiasm and a mountain of challenges ahead.

The U.K.'s Andy Burnham enters 10 Downing Street on Monday with enthusiasm behind him, but major challenges ahead

The United Kingdom's new Prime Minister Andy Burnham delivers a speech outside 10 Downing Street in London after taking office on Monday. [Isabel Infantes / REUTERS]

Andy Burnham promises unity and tangible improvements as he steps into the UK premiership amid pressing challenges and cabinet uncertainties.

Andy Burnham has taken on the role of Prime Minister of Britain, emphasizing a major shift in power dynamics through decentralization. Among his bold proposals are the elimination…