erm... to understand the story first u must understand the
original gundam story.
that is earth population overload, so they put ppl into these big
big cylinders and throw them into the space and call them space
colony. after some generations, the ppl on earth start to
discriminate those living in space, coz say they not real humans or
something like that.
then.... aiya alot of wat happen lah.
the 1st war, the space colonies declare war on earth, then got 1
siao kia crash the colony into earth, including all the ppl living
in the colonies. alotta ppl die, earth oso got very big damage.
this is remembered as the 1 day war, coz start and end in 1
day.
then later got 1 week war, then 1 month or year war.... then...
er.. presumably peace. this is the original story.
then gundam W is like an alternate universe.
the space colonies split into 5 different sections, altho on the
surface is declare peace (or ceasefire, truce, etc), um um di, the
rebel force (at 1st is the space colony govt, this will change
later) hatch a plan, call operation meteor, to crash 5 colonies
into earth. later dunno why, change to send 5 gundam into
earth.
then er.. become like this loh. war here war there... then the
earth the rommufeller guy, fake the gundam boys into killing the
peaceful old man, so the space colonies scared got repercussion,
they say they got nothing to do with the gundam.
so the boys like tio abandon liaoz loh.
then colonies n earth form simi peace pact. then the rommufeller
guy go start his own army blah blah blah, then fight here fight
there, then kill all the bad guys. then the end loh.
simple bo? 
