Prelude to the First World War by Jacob Gould Sherman

Trotsky wrote dispatches for this newspaper over the course of a couple of years. Iissa Blumey is an academic expert on Yemen, but he's before that he wrote books about the Ottoman Empire. Jacob Gould Sherman was president of Cornell University and played various diplomatic roles in the US government from 1920s to 1930s. Richard Hall penned Prelude to the First World War; his book has timelines going down year by month.