Initial Training in this MOS is primarily conducted through One Station Unit Training (OSUT), which combines basic training and job training into one single course of instruction. 1  OSUT for 11B, Infantryman is 13 weeks, 3 days at Fort Benning, Georgia.
The Seikan Tunnel in Japan and the Channel Tunnel between the United Kingdom and France are both in excess of 50 km (31 mi). Under construction since 2002 and projected open in late 2016, the Gotthard Base Tunnel (a second rail tunnel, 57 km long), will be the world's longest.
Similar projects are under way elsewhere in the Alps. Work on the 9.6-mile (15 km) Ceneri Base Tunnel began in 2006 and, when completed in 2019, it will be an important feeder in the south for the Gotthard Base Tunnel.