Israeli forces are seen building positions in Gaza as they continue their offensive, capturing or depopulating two-thirds of the enclave, according to the United Nations. Evacuation warnings have been issued to hundreds of thousands of Palestinians, forcing them into a diminishing space. The Israeli military has not revealed its long-term plan for the recaptured territory, but Palestinians fear it aims to occupy it permanently. The offensive was launched after Hamas-led fighters attacked southern Israel, killing 1,200 people and taking 251 hostage.