Pipeline transport are usually buried. The oil is moved through the pipelines by pump stations along the pipeline. Natural gas (and similar gaseous fuels) are lightly pressurised into liquids known as Natural Gas Liquids (NGLs). Natural gas pipelines are constructed of carbon steel. Hydrogen pipeline transport is the transportation of hydrogen through a pipe. Pipelines conveying flammable or explosive material, such as natural gas or oil, pose special safety concerns and there have been various accidents. Pipelines can be the target of theft, vandalism, sabotage, or even terrorist attacks. In war, pipelines are often the target of military attacks. It is uncertain
Central Europe Pipeline System European countries, known as the Northern European Pipeline System (NEPS). The pipeline system was founded in the late 1950s by NATO being funded as part of the NATO Common Infrastructure Program, with the various participating countries already having some of the infrastructure and capabilities required to operate such a system. In the 1980s, the pipeline was attacked several times by terrorist organizations. The Belgian communist terrorist organisation Communist Combatant Cells carried out five bombings against the pipeline on 11 December 1984, and one more attack on 6 December 1985. Earlier that year, in April 1985, a bomb attack was carried