The basic textbook employed by the Defense Institute of Security Cooperation Studies (DISCS - formerly DISAM) for instruction of all classes covering the full range of security cooperation activities. The text is revised annually and commonly referred to as the Green Book as it is bound in a green cover.
7938 Passenger Train is a City Trains set released in June 2010. It was sold in the US as a Special Edition set at the LEGO Store and Toys R Us.
11 Big Lego City Sets. The older children enjoy the challenge that is offered by the bigger building sets and these 11 big Lego City sets will not only give them an enjoyable challenge, it will also take their collection to a new level. These sets have more than 700 pieces and some have more mini-figures than the average set.