On the battlefield of war certain changes in reality could be predicted - from seasonal opportunities to covert advantages.

战场上的某些变化 - 从季节因素到潜在优势 - 实际上是能够被预测的。

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Early in the Galactic Civil War, he was put in charge of covert operations in and around the Alderaan system.

银河内战早期，他在奥德朗星系内外负责秘密行动。

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Apart from the nuclear confrontation with the Soviets, there was an intense covert war, from back alleys in Europe to the Congo, Indochina to Latin America.

FORBES: What Happened To The American Declaration Of War?

The confirmation hearing Thursday sets the stage for a public airing of some of the most controversial programs in the covert war on al-Qaida, from the deadly drone strikes to the CIA's use of interrogation techniques like waterboarding during President George W. Bush's administration.

NPR: Lawmakers To Get Drone Report Before CIA Hearing

To those of us who have watched the war on terror in the South Asian theater closely, the United States has been in a covert war with Pakistan for years, simultaneously funding the military and fighting semi-secretly, but on Pakistani terrain, with actors it believes the military may be shielding.

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