that is true Mjolnir...it started as CR/BAF...when i got there there were only BAF and CR fighting along with two untagged ships...but later....i think only keepers weren't there and maybe few rheinlanders....
as for help i don't think anybody actually called for help...they simply started coming...at least i didnt hear anybody in CR group that called for other factions to join...naturally i dont know what was going on in private chats...
But there are alliances for a reason...
Anyway...i don't think anything of such scale will be repeated anytime soon...