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.
Gotthard Tunnel: World's longest rail tunnel officially opens with eclectic opening ceremony. Photo: Guests look at screens during the opening ceremony of the Gotthard tunnel. The world's longest tunnel has officially been opened in Switzerland with an elaborate ceremony featuring an eclectic range of performance art. 1  The Gotthard Base Tunnel cuts through the Swiss Alps easing travel and trade.  The 57km tunnel took 17 years to complete and cost over $16 billion.