http://images.google.com/hosted/life

Millions of searchable high quality (for the era!) photos & drawings
from the magazine from the 1860's onwards - everything from daily life
to warfare...and lots of photos from WW1, WW2, Korea, Vietnam, Kuwait,
Iraq - every was the US was involved in, and many of the campaigns it
was not that were still covered by Life photographers - such as the
Russian front in WW1 & WW2