North of Israel is Lebanon. There's been a lot of trouble between these two neighbouring countries.
Lebanon is a small country and much of its land is mountainous. It has a population of nearly four million. Almost all of these people are Arabs, but the population is very mixed, with people from lots of different religious groups, and that's made Lebanon a very complicated and sometimes divided country.
In the 1970s and 1980s there was a civil war in Lebanon. Israel invaded south Lebanon during the war to prevent Palestinian attacks across its northern border.
An armed Lebanese group was set up, called Hezbollah, who opposed the Israeli troops who remained in south Lebanon.
However even though the Israeli army left Lebanon six years ago, there have still been lots of cross border attacks. It's these attacks, and the way Israel has responded to them, that have been the big story in relations between these two countries.