Barbara Tuchman is one of the leading historians of the 20th century ; she proves it here once more. In this book she manages to use an anecdote - the telegram - to explain in a thrilling and convincing way the reasons for the US to enter the war. It is a brilliant book thanks to her remarkable style which blends suspense and clarity and yet no compromise with historical truth.
Many historians are experts and have a vast knowledge of their subject. Very few like Barbara Tuchman make their knowledge accessible in an enticing way to the "man in the street".