The French developed an OTH radar called NOSTRADAMUS during the 1990s[26] (NOSTRADAMUS stands for New Transhorizon Decametric System Applying Studio Methods (French: nouveau système transhorizon décamétrique appliquant les méthodes utilisées en studio).) In March 1999, the OTH radar NOSTRADAMUS was said to have detected two Northrop B2 Spirit flying to Kosovo. It entered service for the French army in 2005, and is still in development.