By Yoav Stern, Haaretz Correspondent and Reuters : Assad: Lebanon should talk with Israel if negotiations progress
Talkback
Title:TAKE IT OR LEAVE IT PRINCIPLE
Name:Indrajaya
City: jakartaState:
...Israel could question Syria`s relations with Iran then Syria could question Israel`s ties with other countries, particularly the United States...

It called the reciprocal principle, a basic principle of normal international relations under the umbrella of United Nations and International.