FRENCH, BRITISH, BELGIAN, CANADIAN AND MOROCCAN SOLDIERS AND THEIR GERMAN ENEMIES Liquid fire--a chemical which bursts into flame on contact with the air--is discharged from an apparatus that resembles a fire extinguisher. It is effective in fighting at close quarters] [Illustration: Moroccan troops in camp at Arcy. France, like Great Britain, has been able to draw upon her colonies for soldiers] [Illustration: These Belgian soldiers are weary and covered with mud from the trenches, but they are rallying for a fresh resistance to German attacks] [Illustration: Canadian volunteers at bayonet practice. From the beginning of the war, the drilling of young Canadians for service in Europe has gone on incessantly] [Illustration: This large cave in the chalk hills of France furnishes homes for three companies of German soldiers. It is divided by partitions into many living rooms] [Illustration: These soldiers have completed their underground shelter by constructing a fireplace and are now adding the finishing touches to the chimney] [Illustration: A remarkable picture of French soldiers leaving their trenches at the beginning of a spirited bayonet charge on the German positions] [Illustration: An armored automobile intercepting a troop of cavalry. In the opening of the war in particular, automobile raiders played a dashing part] There were now two wedges driven into the German front, and the British desired to join them and make what might be termed a countersalient, or a salient running into the original salient of the Germans. But the space between the two horns of the British force was a network of trenches. The horns might prod and irritate the Teutons, but they needed artillery again to rid the German breastworks of machine guns and demolish the obstructions which would cost too many lives to take in the same manner in which the British success had been won in its night attack. Nevertheless the British started in to bomb their way toward Festubert, and they even gained forty yards in this hazardous undertaking before they were forced to stop. If they had seemed to be an irresistible force, they had met what had every appearance of being an immovable body--and there was a limit to human endurance. By May 17, 1915, the British concluded that their most advisable offensive was to clear the space between their two wedges by cutting off the Germans who held that part of their line. To do this the British attempted to cut off the German communication to the north from La Quinque Rue; but, by that time, the Teutons had received reenforcements; and they rained such a shower of lead on the attacking force that the attempt had to be abandoned, but not until many heroic efforts had been made by the British to succeed in their purpose.