What enforcement power does the International Court of Justice have in South Africa’s genocide case against Israel?

CAPE TOWN, SOUTH AFRICA - JANUARY 11: Picket outside the Cape Town High Court on January 11, 2024 in Cape Town, South Africa. Call for legal fraternity to don their robes and members of the public to stand in support with SA's legal team appearing at the International Court of Justice against Israel. (Photo by Misha Jordaan/Gallo Images via Getty Images)