When you attack someone, you're supposed to bring 4 units from allies into battle with you. I have 102 allies but when I attack someone, I only bring between 110-115 units every time and my opponent brings 400-425. I get blown out every time and it's annoying. Can anyone tell me why I can't bring any more units than 115 into an attack?

There's a contribution limit. I don't recall how it works and don't feel like doing the research for you. I will offer this advice: If you want to stop losing battles, take the time to look at your rival's profile before attacking or raiding. If they have a lower alliance attack/defense score than you then fire away. Don't attack/raid rivals with a higher score than you. Also be ware that if the scores are close you should consider what flag they are flying and what their strengths are compared to yours. Good rule of thumb is don't raid/attack a rival unless you have several hundred more alliance attack/defense points than that of your rival.