-
[PBS访谈社会系列] PBS高端访谈:美国到底需要多少弹道导弹核潜艇?
JUDY WOODRUFF: During the 1980s and '90s, the U.S. Navy built a fleet of nuclear-armed submarines. Their mission? Deter an attack against the United States, and, if that failed, fight a nuclear ..2015-12-29 编辑:max
-
[PBS访谈社会系列] PBS高端访谈:美国应如何利用其军事力量来最有效地打击ISIS?
More American troops are heading for Syria as the U.S. looks to press the fight against ISIS.2016-04-26 编辑:max