Samenvatting

The Global Positioning System has long been a great tool for militaryand, of course, civilianactivities, but the militarys heavy reliance on it also makes it a likely target. Due to the character of the satellite navigation system, security vulnerabilities exist that threaten information continuity and integrity. In this chapter possible threats for global satellite systems are discussed briefly and some actual civil and military actions of Navigation Warfare are mentioned. The chapter also gives an overview of past and current research done on these type of vulnerabilities by the Netherlands Defence Academy. Within this research different approaches to Navigation Warfare actions are explored. For this purpose mitigation concepts are designed and tested in a laboratory setting. The chapter also addresses alternative means for obtaining position and timing information.