Complex sentence: A total of 121 IDF soldiers were killed in the war, including the two soldiers who were seized in the cross-border raid that started the war, whose fates weren't confirmed until their bodies were exchanged for Lebanese prisoners in 2008.
Split into simpler sentences: A total of 121 IDF soldiers were killed in the war, including the two soldiers who were seized in the cross-border raid that started the war. Their fates weren't confirmed until their bodies were exchanged for Lebanese prisoners in 2008.