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Today the Iraqi city of Fallujah became the site of some of the bloodiest battles during

the US-led invasion 20 years ago. We speak to those who lived through it. We're in Brazil,

where our correspondent discovers that despite recent measures there to protect the overweight,

a culture of discrimination remains. And we take a ferry up the Magdalena River in Colombia,

where the ripple effects of history are felt in the present day. First, this week marks the

20th anniversary of the US-led invasion of Iraq. In March 2003, a coalition, including the UK,

began a full-scale air and ground invasion under the pretext that Saddam Hussein was developing

weapons of mass destruction, a premise that later proved to be false. The prime objective of

the coalition's shock and awe strategy, as it came to be known, was regime change in Baghdad.

The swift and decisive first months of the war were followed by a fierce counterinsurgency,

which led to the loss of hundreds of thousands of lives. This gave way to sectarian violence,

and then the rise of ISIS. But the seeds of this conflict were so long before the invasion in

2003, says Jeremy Bone, who's been reporting from Iraq since the 1990s and returned this week.

The first time I came here to Iraq was for me very exciting. It was November 1990, about three

months after President Saddam Hussein sent his army into Kuwait. That rash decision changed

everything for the Iraqis and for Saddam. After he was captured at the end of 2003, Saddam was

questioned for months by the CIA. His interrogator wrote later that the former president put his head

in his hands and groaned when asked why he'd invaded Kuwait. No wonder, Kuwait put Iraq on a

road to hell. War, sanctions, invasion, and then more war. Saddam's journey ended at the gallows

for the people of Iraq. It continued. Saddam Hussein's crimes towards his own people were well known

by the time he invaded Kuwait. He was a tyrant. But for the US and Britain and their Arab friends,

...