To mark the 100 anniversary of the birth of Imi Lichtenfeld, Yaron Lichtenstein, world´s maximum degree in Krav Maga and certified as 9th dan by Imi Lichtenfeld, decided to undertake an extensive project in memory of the creator: explaining the official original Blue Belt program, such as it appears in the manual published by Imi 1971, in a series of 6 videos. The whole essence of the system, both in its physical and mental, appears in the Blue Belt level at the highest level a student can achieve. Among other techniques in this video, and with the help of his son Rotem, Grand Master Yaron focuses once again on one of Imi´s most favorite techniques - the foot work for kicks in the krav-maga. Also, we will show a few ways how to strengthen parts in body used for punching and hitting.