The Training School “Photonic Integration for Aerospace, Satellite & Radar Technology” took place in France from Feb 3rd to 5th, 2020, in Paris and Palaiseau. Organised by Prof. Anne-Laure Billabert, Prof. Daniel Dolfi and Prof. Stavros Iezekiel, it was attended by 27 granted trainees, coming from 12 countries, plus 34 local students. Fifteen trainers participated, being 5 of them reimbursed by this COST Action. The feedback from the participants was very positive, and they enjoyed a lot the lectures and the experience in general.