You have just gotten a taste of having your kingdom aggressively raided back, just as you have disrespectfully and clinically greedily done to everyone in the game in the ranking lower than you.
If you continue to raid our alliance, it will be reassured that you will be reciprocated with the same again.
RE: 18.04 -> 20.04: good, 20.04 -> 22.04: good, 22.04 -> 24.04 ... CRASH!!