Ishiba notes during a joint press conference that he and Gates discussed the importance of studying the deterrent effect of the U.S.-Japan alliance, including the nuclear umbrella. 在聯(lián)合記者會(huì )中石破茂提到他與蓋茲討論到了研究美日聯(lián)盟嚇阻效果的重要性,包括了核子保護傘的問(wèn)題。