20 years after US invasion, war-scarred Iraq faces uncertain future

Iraq on Monday marks 20 years since the start of the US-led invasion that toppled dictator Saddam Hussein, but no official celebrations are planned. The oil-rich country remains traumatised from the years of war, occupation and bloody sectarian turmoil that followed the operation launched on March 20, 2003. A semblance of normalcy has returned, but Iraq still battles a range of entrenched challenges, from political instability to poverty and rampant corruption.