Romney is stuck in a cold war mentality. Anyone who has inadequate understanding of foreign affairs in America always looks to our military. He sabre rattles because he doesn't understand the neuance and finesse it takes for the currently remaining super power to lead the world. He still thinks that Russia is our most dangerous enemy and sees the solution to every foreign problem as being military might or incursion. Canna - he stated just such a thing in his speech. Mccain was worse even - if I recall he seemed to be all for at least 4 "wars".
And of course, Romney, having no solid grasp of how things are done on the world stage will fall victim - as Bush did - to the neocons, several of which he has enlisted as his advisors.