Though Rwanda has come a long way since the 1994 genocide, scars of the past still haunt the nation

Rwanda is preparing to mark the 30th anniversary of the East African nation's most horrific period in history — the genocide against its minority Tutsi. To this day, new mass graves are still being discovered across the country of 14 million people, a grim reminder of the scale of the killings.

Delegations from around the world will gather on Sunday in the capital of Kigali as Rwanda holds somber commemorations of the 1994 massacres. High-profile visitors are expected to include Bill Clinton, the U.S. president at the time of the genocide, and Israeli President Isaac Herzog.

In a pre-recorded video ahead of the ceremonies, French President said on Thursday that France and its allies could have stopped the