It's one big package. Change history then try to change the present reality after that. What is you basis to counter all the historical record regarding Syrian-Soviet-Egyptian coordination prior to the war in '67? It is all documented quite thoroughly in Oren's book as in others. And is your proclamations regarding Syria today dependent on accepting your fantasy version of history? Probably... In the next month Syria, and Bashi in particular, are going to have to come to terms with the consequences of murdering Lebanese in order to keep their "occupation by proxy" going. Israel doesn't have to lift a finger to put pressure on Syria. They are in a mess all on their own. Until then it is a good idea for the IDF be ready.
Trump: Middle East would be more stable if Saddam, Gaddafi still in power (Reuters)
from the article: IDF: No Gaza ground operation due to fear of war with Syria