The greatest philosophical mission of our time, as far as I can tell, is to rescue a belief system -- Pacifism, defined on Wikipedia as "the opposition to war or violence as a means of settling disputes or gaining advantage" -- from its death bed.
Pacifism is not quite dead yet, but it must be in a coma. In any typical conversation about international politics, the mention of peace talks or agreements will be laughed or scoffed at. It's our conventional wisdom that meaningful compromise will never be found between Israel and Palestine, or India and Pakistan, or North and South Korea. It's widely accepted that various African failed states like Somalia, Congo and Sudan are beyond repair. Even my favorite President Barack Obama, who has clearly learned a lot from the great pacifist Martin Luther King, has not found a strategy for the US war in Afghanistan that differs significantly from George W. Bush's.