Sat 07 Jul 2006Thousands flee south Lebanon over fears of invasionIsrael called up army reservists yesterday for a possible major ground assault against Hizbullah in Lebanon as Washington announced a diplomatic drive and said that the conflict's root causes had to be tackled before any ceasefire.Fearing a large Israeli ground attack, thousands of Lebanese civilians fled north after the attacking forces warned them to leave border villages and kept up a 10-day-long air bombardment.