What would you say to someone who wants to commit a suicide?

What would you do to prevent him/her to kill herself? What encouraging words would you say? For example someone very special wants to kill herself, want can you possibly do or say?

Do you blame the soldiers or the war?

During the Iraq war (or any war) do you blame the soldiers or the war? For example, many wars that were undesirable or seemed unjust the people didn't honor the soldiers when they returned home from...