Only four days later, however, Rockwell brought down the escadrille's first plane in his initial aërial combat. He was flying alone when, over Thann, he came upon a German on reconnaissance. He dived and the German turned toward his own lines, opening fire from a long distance. Rockwell kept straight after him. Then, closing to within thirty yards, he pressed on the release of his machine gun, and saw the enemy gunner fall backward and the pilot crumple up sideways in his seat. The plane flopped downward and crashed to earth just behind the German trenches. Swooping close to the ground Rockwell saw its débris burning away brightly. He had turned the trick with but four shots and only one German bullet had struck his Nieuport. An observation post telephoned the news before Rockwell's return, and he got a great welcome. All Luxeuil smiled upon him--particularly the girls. But he couldn't stay to enjoy his popularity. The escadrille was ordered to the sector of Verdun. While in a way we were sorry to leave Luxeuil, we naturally didn't regret the chance to take part in the aërial activity of the world's greatest battle. The night before our departure some German aircraft destroyed four of our tractors and killed six men with bombs, but even that caused little excitement compared with going to Verdun. We would get square with the Boches over Verdun, we thought--it is impossible to chase airplanes at night, so the raiders made a safe getaway.... The fast-flowing stream of troops, and the distressing number of ambulances brought realization of the near presence of a gigantic battle. Within a twenty-mile radius of the Verdun front aviation camps abound. Our escadrille was listed on the schedule with the other fighting units, each of which has its specified flying hours, rotating so there is always an _escadrille de chasse_ over the lines. A field wireless to enable us to keep track of the movements of enemy planes became part of our equipment. Lufbery joined us a few days after our arrival. He was followed by Johnson and Balsley, who had been on the air guard over Paris. Hill and Rumsey came next, and after them Masson and Pavelka. Nieuports were supplied them from the nearest depot, and as soon as they had mounted their instruments and machine guns, they were on the job with the rest of us. Fifteen Americans are or have been members of the American Escadrille, but there have never been so many as that on duty at any one time. V--STORY OF THE BATTLES IN THE SKIES