President Barack Obama and British Prime Minister David Cameron on Saturday called for an immediate cessation of hostilities in Gaza and pressed for action that would lead to a permanent ceasefire. 'On Gaza, they condemned the resumption of rocket fire and called for an immediate cessation of hostilities leading to a sustainable ceasefire,' the White House said in a statement about the call between the two leaders, during which they also discussed Iraq and Ukraine. 'President Obama and Prime Minister Cameron reiterated support for Israel's right to self-defense while emphasizing the need for all sides to minimize civilian casualties.'