This makes them slow to answer to the call of the pilot; and when attacked by the more nimble Fokkers they have a hard time to keep from being shot down. That is why a number of the Nieuports with well known "aces" in charge, must always be hovering over the fire controls, ready to fly to their assistance in case they are attacked.
"Things are surely beginning to happen," murmured Tom. "The Boches seem to be in an unusually fierce and aggressive humor on this particular morning."
The youth was right in this. The Germans had been thrown out of numerous hard-won positions lately, and this gave them cause for feeling bitterly toward the French.
By the time the American unit reached the field of battle, several furious combats had already taken place with disastrous results. Two of the enemy machines had been sent down, one of them in flames, after the pilot had fallen at his post, fairly riddled by the gunfire of the Frenchman. A birdman had also paid the great debt on the side of Petain's men. As the score was two against one there seemed no cause for depression.
The Americans would not be kept out of the fight for long. No sooner were three adventurous Teuton pilots seen climbing up to attack
