Prince Harry first saw the Halo trust's landmine clearance in Mozambique three years ago and has witnessed the suffering they cause to soldiers and civilians while with the military in Afghanistan.
Some 16 years after his mother's visit to Angola did so much to raise awareness of the problem, mines are still being laid daily.
As ITV News Correspondent Richard Pallot reports, the prince's private visit makes the cause very public once again.
More top news
Sadiq Khan has said that his prospects of being elected London mayor could be damaged by the party's poor handling of racism accusations.
US President talks about meeting Royal toddler in his last address at the annual White House correspondents' dinner.
Clocks will go forward 30 minutes so there is half an hour more daylight in the evening when energy consumption peaks.