According to Haaretz, there are fewer IDF troops currently patrolling the West Bank than at any moment since 1987. 1987! That's 23 years, meaning that all the enlisted troops were born since then. The Berlin Wall was still standing in 1987, and Ronald Reagan was in the White House.
How did this happen? Well, so far as one can tell by following media, not archives, it's a combination of the Israelis forcefully beating the 2nd Intifada, the Palestinian weariness of violence which always hurts them more than us, the American involvement in creating functioning PA security forces, Salam Fayyad's policy to build a Palestinian State even before Israel is gone, the PA's fear of Hamas, and probably various other considerations. The important point however is that when the Palestinians tone down the violence, the Israelis return the favor. There isn't and never has been a cycle of violence.
All of which is great. Less convincing are the positions currently being re-affirmed by Fatah: The Palestinians will never accept a Jewish state in any form or formula, because it would be racist; no land swaps because Israel must disband everything it constructed over the 1967 line, including in Jerusalem; full right of return for (descendants of) Palestinian refugees of 1948. One gets the impression the Palestinians regard the Israelis as supplicants for peace, while they, holding all the good cards, are refusing.
Fatah is of course the main group in control of the PA. Once again we are reminded that Peace (upper case) is not likely to happen in our lifetimes. Still, the longer the peace (lowercase) continues, the better for everyone.