1. I didn´t hear about that but it sounds fair. Iran´s aid is not only military, it is also economically and they help rebuilding. I heard, Iran is also funding some Syrian deals with Russia.
2. I have no sources for this claim. But if true, how do both points matter?
3. Iran´s presence is not about Israel. This is what I have, it sounds a bit different from what I said but the result is the same:
"SOCHI, January 30. /TASS/. Iranian military forces are present in Syria at the invitation of the country’s government and will be withdrawn at Damascus’ request, Iran’s Deputy Foreign Minister for Arab and African Affairs Hossein Jaberi Ansari told reporters on Tuesday.
"When all the tasks are achieved, Iranian forces will leave the country with the consent of the Syrian authorities," he stated.
"They are there at the Syrian government’s request to resolve issues that the Syrian people have been facing," the Iranian deputy foreign minister stressed."
Iran to pull forces from Syria at Damascus’ request — diplomat