DENVER -- Republican presidential nominee Mitt Romney plans to deliver a major foreign policy address Oct. 8 in Virginia, a senior campaign official said.

The speech comes about a month after a wave of deadly protests swept the Middle East, killing Americans at the U.S. diplomatic mission in Libya.

On the campaign trail, Romney has been sharply critical of Obama's foreign policy record.

"For the last four years, we’ve had a foreign policy led by a president who believes the strength of his personality is gonna get people to do the right things," Romney said at a rally in Denver on Monday night. "Well, we’ve seen fires burning in U.S. embassies around the world. We need the strength of American military, America’s economy and America’s principles if we’re gonna keep this world more safe and preserve liberty.”