Chad Campbell
Marines' beasts of burden are again leading the pack

With 75 pounds of military gear cinched on her furry back, Annie was stubborn the whole way. The two Marines assigned to her pushed, pulled and sweet-talked her up the steep, twisting trail on the eastern side of the Sierra Nevada. "C'mon, girl, you can make it," Lance Cpl. Chad Campbell whispered in her ear. "Only one more hill," promised Lance Cpl. Cameron Cross as he shoved Annie's muscular hindquarters. The red-hued donkey snorted, nibbled on grass and let loose that distinctive braying, which begins with a loud nasal inhalation and concludes with an even louder blast of deep-throated protest. She also dropped green, foul-smelling clumps, which the...