The requirements for intervention are:
TH8+ non rushed!
Level 80+
Must be active in chat
Must be a relatively active clasher
Level 5 archers min
Must have a certain level of maturity
War will be twice per week
If you are interested in joining then send a request to the clan, i will be strict in who gets accepted, if a member isnt active enough or causes drama they will be kicked resulting in the clan being filled with only active good players who donate often!