Prime Minister of Israel since May 2006, Olmert replaced Ariel Sharon when the latter became incapacitated by a stroke. A native Israeli, Olmert first served in the Knesset in 1973 at age 28. He was mayor of Jerusalem from 1993 to 2003. In the summer of 2006, after a Hezbollah attack, he ordered an incursion into Southern Lebanon that became known as the Second Lebanon War. Northern Israel came under rocket attack for over a month, and the repercussions of this conflict continued to trouble Israel in 2007.