The International Court of Justice (ICJ) in The Hague, Netherlands. Anadolu Agency
The UN's highest court, based in The Hague, said in a statement that Brussels had filed a declaration of intervention.
Several countries, including Brazil, Colombia, Ireland, Mexico, Spain, and Turkey have already joined the case.
In December 2023, South Africa brought a case to the United Nations' highest court in The Hague, alleging Israel's Gaza offensive breached the 1948 UN Convention on the Prevention and Punishment of the Crime of Genocide.
In rulings in January, March, and May 2024, the ICJ told Israel to do everything possible to prevent acts of genocide in Gaza, including by providing urgently needed humanitarian aid to prevent famine.
These orders are legally binding, but the court has no concrete means to enforce them.
Israel has criticised the proceedings and rejected the accusations.
Since October 2023, the Israeli genocidal war on the Gaza Strip has killed 70,369 Palestinians, most of them women and children, according to the Palestinian health ministry, whose figures are considered reliable by the UN.
The campaign has also displaced the majority of the 2.2 million people in the Palestinian territory.
Belgium was among a string of countries to recognise the State of Palestine in September, a status acknowledged by nearly 80 percent of UN members.
* This story was edited by Ahram Online.
Short link: