An African man, who crossed illegally into Israel from Egypt, sits on the ground after being detained by Israel's military (not seen) some 50 kilometres (31 miles) north of the southern city of Eilat November 22, 2010. Israeli bulldozers began laying the groundwork on Monday for construction of the barrier to seal off part of the Jewish state's border with Egypt, the Defence Ministry said. REUTERS/Amir Cohen (ISRAEL - Tags: POLITICS IMAGES OF THE DAY SOCIETY)