Washington (Condi Rice and John Bolton) succeeded in getting a UN resolution on ending the Lebanon war that was acceptable to the US and Israel. However, it is not acceptable to many other countries, hence the difficulty getting other countries (like France) to commit troops. If nobody will commit troops, then the peace agreement will fail. Maybe we want it to; that will let Israel try again to destroy Hezbollah. But if they didn’t do it the first time, they may not do any better the second try.