Realize you need all the world on your side.
Follow International Law.
Do not stoop to your enemies tactics.
Be vigilent, very vigilent.
Try not to paint all people with the same brush.
Actions speak louder than words.
Don't over or under estimate what someone can do.
Remember there are criminals in every society. Just because Lee Boyd Malvo is from Jaimaca and killed Americans, that doesn't mean Jaimaca is attacking us. Do not start lobbing missles at Jaimaca or claiming their President should have controlled him. There are groups on both sides that are willing to take matters into their own hands and they cannot be controlled by their governments.
I was lucky on my last trip. I was part of a Church group. I was able to see the country from the perspective of my relgious roots. I also broke away from the group for a day to visit a friend's daughter. I experienced a small part from the perspective of a citizen.
We teach kids here to have a family plan in case of fire or hurricane. It's a half ass serious attempt by most families. There, it's serious business. She and her husband have multiple locations to meet up, and they both keep the list with them. Item 25 or so is his parents house in New York. Sobering thought what the world would be like if they ever got to that position.
You may also come away, at least many of us did, at how small and vulnerable Israel is. With their military success stories, they seemed bigger and stronger until being there. It's not a big country and after eliminating areas that probably cannot ever be settled and historical sites, it gets even smaller.