Netanyahu: Putin told me that without our bond, we might have been at war

Prime Minister Benjamin Netanyahu said that Russian President Vladimir Putin told him that “without you, and the relationship we have, we [Russia and Israel] might already be at war,” during an interview with Army Radio on Wednesday.  
The Russian leader also said, according to Netanyahu, that Russia and Israel came near to a clash "four times already".
The causes for these near-clashes might have been Russian and Israeli actions in Syria. However, Netanyahu did not explain what the causes were.