the only issue with losing is it can be pretty devstating to wpa and science. you end up eating alot of massacres which means high guilds pump, as u exit ewocf u end up eating learn waves since your "small"
My suggestion though for geting war is take a big challenge. 3 of my kds 5 wars this age have been against kds that had >15% nw advantage on us pre war. Only reason we dont have average war target that big is 1 war at 75% and we generally wave them then get declared on which lowers their declare nw.