From the back of the book:
The Usborne Battlegames series provides a novel way to learn about some of history's most memorable wars and warriors, from Knights of the Middle Ages to the soldiers of World War II. Each book includes a pull-out section with gameboards and cut-out pieces for four realistic battles. Players can fight out Richard the Lionheart's most famous battle in Knights at War, recreate the American-Japanese battle for the Pacific in World War II, try out the tactics of fighting sail in Fighting Ships, or even stage a futuristic battle for space in Galactic war.
The game boards and pieces are easily removed form the centre of the book for play, leaving 28 pages of carefully researched text which gives the historic background to each topic and the rules for each game.