The book: thirteen short stories, dealing with wars from the Roman/Carthage, via the US Civil War and South American revolution to the skies above the trenches, the Italian front in WWII and Vietnam. Soldiers, pilots, arms dealers. But always with a surprise reversal in the tail, or a shock, or a change from what you thought.
The author: Len Deighton started by writing cookery cartoons, then spy stories, then (or mixed in) war tales, either fictional or factual. This collection of stories is from 1973.
My opinion: there are bits of 'Winter' in here; bits of 'Bomber', bits of 'Fighter'; as well as stories perfect in their own right. He is always very good on gear, on landscape or terrain, on the common realities as opposed to the big strategic view; as in the story on Vietnam: "in this war there was no front line, just people trying to kill you". Sardonic, knowledgeable, very good writing - 4-and-a-half stars!