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Israeli ground forces have crossed into southern Lebanon marking an important new escalation of their offensive against the militant group Hezbollah. Israel is calling the incursion a 'limited ground operation', and was backed by airstrikes and artillery fire. We will hear from our reporter who is on the Israel-Lebanon border.

The ground offensive follows weeks of heavy blows by Israel against Hezbollah, including the killing of its long-time leader. We will hear from our correspondents across the region and speak to people in Lebanon, Israel and its main ally, the United States.

There's a warning that one of the worst famines in decades could soon take hold in Sudan following a year and a half of brutal civil war there. We have a special report from near the capital, the scene of intense recent fighting.