What is the author tone in the nonfiction book, The Afghanistan Papers?

Whitlock writes in a terse journalistic style. His language is often brash and over-confident, belying his position of interested commentator: part of the exercise in which he is engaged is camouflaging and vindicating the credulity of him and his colleagues at The Washington Post, who had been largely supportive of the war on Afghanistan for the past two decades and were, as a group inclined to publicize the prerogatives of the military industrial complex, incensed when the war ended in humiliation for the Pentagon.