Gerald Herbert/AP

Romney says his foreign policy would be based on Reagan's

Because of Obama's ineffectiveness, the Iranians are on the cusp of developing nuclear weapons, Romney writes.

In an op-ed posted Monday evening to The Washington Post’s website, Republican presidential candidate Mitt Romney differentiates President Obama foreign policy, and specifically Obama's policy toward Iran, with what he says would be his, if he is elected president in November.

“The overall rubric of my foreign policy will be the same as Ronald Reagan’s: namely ‘peace through strength,’ ” Romney wrote, in contrast to Obama’s, which Romney says has proven ineffective in dealing with the Iranians. And because of the Obama policy's ineffectiveness, the Iranians are on the cusp of developing nuclear weapons, Romney writes.

If the Iranians do develop a nuclear weapon, the “perils for Israel, for our other allies, and for our own forces in the region will become unthinkable,” according to Romney, who is scheduled to address the pro-Israeli lobby AIPAC on Tuesday.