Mitt Romney is planning to address questions over his foreign policy agenda at a speech next week.
With a month to go until the presidential election, Mr Romney will make a final push to convince the US electorate that he is the right man to succeed Barack Obama.
An aide aid the speech was likely to take place in Virginia but did not offer details of what he would say. However the Republican contender has been publicly critical of his rival over his handling of anti-American protests in Libya and the Arab world, and also questioned President Obama's support for Israel over Iran.
Romney staffers said the speech would present "a stark contrast" in the international politics views of the two presidential candidates.
In a piece for the Wall Street Journal this week, he argued that under President Obama, America was "at the mercy of events rather than shaping them".
"That's dangerous," he said. "If the Middle East descends into chaos, if Iran moves toward nuclear breakout, or if Israel's security is compromised, America could be pulled into the maelstrom."
He called for "a new strategy toward the Middle East", writing that "at a time when Israel needs America to stand with it, [Obama] declined to meet with Prime Minister Benjamin Netanyahu".
The contenders squared off on Wednesday night in the first of three presidential debates in the run up to the November 6 election, arguing about domestic questions. Next Thursday evening they will debate again, this time covering issues of foreign policy.