<< t wasn't really an invasion, more like a detour. There was never a peace treaty with Belgium (I'm assuming you're referring to that). It was an unwritten rule of war that you never invade a neutral country. Germany went through Belgium to surprise France. Some Belgians fought back and some were killed. Britain didn't like that and declared war on Germany. I don't really see how that makes them the bad guy though. >>
not quite, after napoleon was defeated for the second time in 1815, the dutch lobbied to other nations (more specifically england) to make a nation great enough to hold france within it's borders, in 1830, belgium kicked out the dutch, and wanted independance.
england saw a golden opportunity to eliminate an economical foe, because at that time, the dutch had a huge fleet, and were a naval empire, belgium on the other hand was one of the most important industrial centers of the continent, so by dividing them, england suddenly had a much brighter future to supply their own products.
So belgium became independant with the support of england, but in the agreement on the independance, belgium was forced to stay unallied, they were strictly forbidden to enter an alliance (that rule was removed after ww1), and england promised they'd defend belgium if the independence was comprimised.
basically, england was forced to enter ww1, because it wanted to eliminate an economical foe 80 years earlier.
a part of belgium in the south west stayed free throughout the war, initially by the belgium army, and later enforced by french and english soldiers. Also the reason there are an ungodly amount of english wargraves there. Germans had just as much wargraves, but those were mostly removed, one of the disavantages of losing a war i guess.
Aelus