WASHINGTON – Mitt Romney auditions on the international stage next week as he travels to England, Israel and Poland looking to establish credibility as a potential commander in chief in his challenge to President Barack Obama.

For the Republican presidential hopeful – a former private equity executive and Massachusetts governor with little formal experience overseas – it's a chance to demonstrate competence in settings often occupied by presidents. He'll hold formal meetings with foreign leaders, give public speeches and visit historic sites.

Aides say it's a chance for the candidate to forge links with strong U.S. allies and show that he'll stand up for shared values.