concept: you might see the logo as just some rings but there are the messages behind it, 1- the bigger ring contains the rest of rings which represents that Germany is a friendly host for the 24 countries. 2-the countries which are represented as the intersection of the rings, they meet in 24 places in other words. 3- between every two ring there is the community symbol which is the most important element as I understood from the brief. 4- the rings are following and getting on the top of each other which stands for competition 5- of course, the circles stand for football 6- I used the colors of the flag but a warmer tone of it to express welcoming, that's the highlights of the logo concept