Sir Jeremy Greenstock speaks to Newsweek about when intervention is justified.
Ahmed Jabbar Kareem Ali died in 2003 while British soldiers occupied Basra.
The crowdfunding website seeks to raise money for a legal team to look into legal proceedings.
"The United States have always tried to force their values on other countries," the editorial said.
Sir Jeremy Greenstock said Tony Blair was "genuine" but the Americans were not.
Blair's shadow may hang over the party but challengers to Corbyn should still look to his example to win.
The release of the Chilcot Report is a step towards ensuring we don't repeat past mistakes.
The U.K. must dedicate as much to humanitarian efforts in Iraq as it did to waging war.
But the Labour leader slammed the "governing class" that led the country to war in Iraq.
Sandra Hyde, whose son Ben was killed in a mob attack in Iraq, believed the report would be a "whitewash".
Britain decision to launch 2003 military action "was not a last resort," Sir John Chilcot said.
Chilcot's report on the Iraq War is due to be released in full Wednesday.
Iraq exercises the British public like few other issues.
The inquiry into the Iraq War is due to be published on Wednesday.