By Tim Lister, CNN(CNN) — Former British Prime Minister Tony Blair is returning to the international limelight as the prospective head of an authority tasked with the reconstruction of Gaza. Eight years earlier, in a moment of rare public reflection, the enigmatic Blair was asked why he had gone into politics. But he remained in office until 2007 and has been active in diplomacy and international investment ever since. Blair led the UK into the Iraq War in support of then-US President George W Bush in 2003. The Tony Blair Institute for Global Change (TBI), working closely with the Trump administration, has spent months exploring “day-after” scenarios for rebuilding Gaza.