BRUSSELS, March 6 (Reuters) - EU leaders Antonio Costa and Ursula von der Leyen will hold a video conference with Middle Eastern leaders on Monday to discuss the situation in the region, a spokesperson for Costa said on Friday."This exchange will provide an opportunity to hear leaders' assessments of the situation and to discuss further support from the EU and its member states to countries in the region, as well as ways to bring the current conflict to an end," the spokesperson said.