Heroin is smuggled from Pakistan and Burma, with some quantities transshipped through Nepal. These goods were transshipped at the port of Ophir. Any wool carried by these steamers needed to be transshipped for export at Sydney. At Narvik, freight can be transshipped to ships to cross the Atlantic to North America. No troops or "war goods" were supposed to be transshipped. Containers can easily be transshipped to other modes, such as ships and trucks, using cranes. In addition, cotton was transshipped from Java or India through Singapore. It thus cannot be said to be transshipped. Lightly loaded railroad cars were transshipped over the bridge and pulled by horses. Cannabis and other drugs are transshipped from Afghanistan through Iran, to Kuwait, then to Europe. In addition, cotton was transshipped from Java or India through Singapura.