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.
As for neutral Switzerland's government policy on railway passage through the country, this was based on the German-Italian-Swiss treaty of 1909, which established use of the Gotthard Tunnel. It remained the instrument by which traffic was regulated and justified until the end of the war.