Lest we forget the dead, lost fighting for distant empires

Lest we forget we will all chant, as we have all chanted for a century now. And yet it is as if all that chanting only ensures we remember nothing. If we remembered would we 100 years later still allow our young men to be sent off to kill or be killed in distant conflicts defending yet again not our country, but another distant empire, as we have in Iraq and Afghanistan?