Harry walked through a minefield in Angola, retracing a journey by his mother, Diana, Princess of Wales, in 1997. Several countries plan to revive use of the weapons.

Prince Harry traveled to Angola earlier this week and met the country’s president to discuss demining efforts, almost three decades after his mother’s memorable visit to the south African nation.

Prince Harry visited Angola in southern Africa with the HALO Trust organization, the same group Princess Diana worked with 28 years ago.