This book was written during the three last months of 1915 and the first month of this year in the form of letters from France, Greece, Serbia, and England. The writer visited ten of the twelve sectors of the French front, seeing most of them from the first trench, and was also on the French-British front in the Balkans. Outside of Paris the French cities visited were Verdun, Amiens, St. Die, Arras, Chalons, Nancy, and Rheims. What he saw served to strengthen his admiration for the French army and, as individuals and as a nation, for the French people, and to increase his confidence in the ultimate success of their arms. This success he believes would come sooner were all the fighting concentrated in Europe. To scatter the forces of the Allies in expeditions overseas, he submits, only weakens the main attack and the final victory. At the present moment, outside of her armies for defense in England and for offense in Flanders, Great Britain is supporting armies in Egypt, German East Africa, Salonika, and Mesopotamia. No one who has seen in actual being one of these vast expeditions, any one of which in the past would have commanded the interest of the entire world, can appreciate how seriously they cripple the main offensive. Each robs it of hundreds of thousands of men needed in the trenches, of the transports required to carry those men, of war-ships to convoy them, of hospital ships to mend them, of medical men, medical stores, aeroplanes, motor-trucks, ambulances, machine-guns, field-guns, siege-guns, and millions upon millions of rounds of ammunition. Transports that from neutral ports should be carrying bully beef, grain, and munitions, are lying idle at a rent per day of many hundreds of thousands of pounds, in the harbors of Moudros, Salonika, Aden, Alexandria, in the Persian Gulf, and scattered along both coasts of Africa. They are guarded by war-ships withdrawn from duty in the Channel and North Sea. What, in lives lost, these expeditions have cost both France and Great Britain, we know; what they have cost in millions of money, it would be impossible even to guess.