Frida Ghitis : Presidents face unexpected challenges when it comes to international affairs . Ghitis : It 's hard to find a sharp difference between Romney and Obama in foreign policy . She says Obama and Romney disagree about the future Pentagon budget . Ghitis : The president has said he wants more money for defense, but his critics say that would mean cutting other parts of government spending like education or infrastructure.
Frida Ghitis : Presidents face unexpected challenges when it comes to international affairs . Ghitis : It 's hard to find a sharp difference between Romney and Obama in foreign policy . She says Obama and Romney disagree about the future Pentagon budget . Ghitis : Obama or Romney will likely preside over conflict with Iran and involvement with Syria .