We were 'blissfully ignorant''of' the problems that had occurred.
She was 'ignorant' about the dangers of the drug.
They were 'ignorant' [='unaware'] 'of' the facts.
(..) and you will bunk with him. He'll teach you everything. -He'll teach you how to pee. -Sir, yes, sir. Private Joker is silly and he's ignorant, but he's got guts and guts is enough. Now, you ladies, carry on. Sir, aye, aye, sir. The bolt. The bolt goes in the receiver. Operating-rod handle. (..)1987 Full Metal Jacket