forge of empires defeat this very large army

So I want to ask the moderators/makers, if simply upping our defence is the answer I need to now 'to what?' The A/I ensures that the defender is doomed to start with, then on top of that the attacker has 3GBs to pump up their troops, so an attacker with LMA units and beyond with 3 sets of military GB boosts, working the terrain, will win over anything a person puts up as a defence from the same era onward? So when the makers say UP your defences, they dont say to what 'neuclear weapons'? As units in defence even with lots of watchfires and St Basils fully loaded, can't keep out an attack with LMA/Colonial units with 3 military GB bonus. Ive tried 5 rangers 3 dragoons, again she wiped me out? Ive tried 5 rangers and three Grenadiers, she wiped me out and she lost 1 Trechubet and a bit of damage to two longbows. so I have to Colonial age units, with watchfire and St Basil advantage making my units have 72% defence advantage. She has every Military boosting GB, at the moment she has a 65% attack defence advantage.

Ive read the 'military guide' and stats, but where are the stats when your trying to defend against Units on GB steriods? This one player uses Trechubet and longbows, and hits every neighbour every day.

Forge of empires defeat this very large army