Entering in clan

I'd like to enter in the clan United Croatia, and I do not know how to send request. Can u post some pic or tut?

Ok, first of all, you have to go to the clan thing that should be in the top of your screen.. near the blackmarket thing etc.. You click on Clan and then you should see "SEARCH", click there, write the name of the clan.. when you find the clan, click apply and then write whatever you want.
I hope this helps