Unilever, the parent company of Ben and Jerry’s, infringed upon the ice cream maker’s “social mission” by preventing it from speaking out in favor of Palestine, according to a lawsuit.

Ben & Jerry's has been muzzled by Unilever in four attempts to speak out publicly against the war in Gaza with calls “for peace and a permanent and immediate ceasefire,” support for U.S. college students protesting the war and for the end of U.S. military aid to Israel, the lawsuit states.

Ice cream brand Ben & Jerry's said in a lawsuit filed Wednesday that parent company Unilever has silenced its attempts to express support for Palestinian refugees and threatened to dismantle its board and sue its members over the issue.