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.
Artists perform during the grand opening for the tunnel, the world's longest and deepest rail tunnel. The 57km (35-mile) tunnel, which runs under the Swiss Alps, was first conceived in sketch-form in 1947. Construction began 17 years ago. Artists perform during the grand opening of the tunnel.