Does Syria need iranian bases on its ground? Does Iran need to stay in Syria?

https://www.timesofisrael.com/iran-has-10-military-bases-in-syria-two-near-israel-border-analyst/

https://www.nytimes.com/2018/02/19/world/middleeast/iran-syria-israel.html

https://www.dailystar.co.uk/news/world-news/694628/syria-t4-airbase-israel-bombs-missile-strike-russia-us-trump-animal-assad-news

https://en.wikipedia.org/wiki/Tiyas_Military_Airbase

https://www.haaretz.com/israel-news/.premium-the-target-of-the-strike-on-syria-was-the-iranian-air-force-compound-1.5990918


http://www.jpost.com/Arab-Israeli-Conflict/First-photos-emerge-of-Syrian-base-allegedly-targeted-by-Israeli-air-strike-549453