The Laboratory for Plasma Physics of the Royal Military Academy is conducting experimental and theoretical research on plasma physics and fusion energy in the framework of the European thermonuclear fusion research programme and has focused more particularly on the development of Ion Cyclotron Resonance Heating (ICRH) systems. We study the theoretical aspects of the interactions of ICRF waves with fusion plasmas by means of analytical models and sophisticated numerical codes developed in the laboratory. The design of heating systems (antennas) is also an important aspect of our activities, and the LPP has developed antennas for various experiments: Textor (Germany), JET (UK) and W7-X (Germany). The LPP is also strongly involved in the design of an ICRF antenna system for the future international fusion experiment ITER.