Israel and Russia will continue to maintain the close defense and security coordination between their two militaries, Israeli Prime Minister Benjamin Netanyahu said on Tuesday upon departing for New York to attend the U.N. General Assembly.

“I agreed with President Putin that IDF and Russian military working teams would meet soon. We will do what is necessary to defend the security of Israel,” he told the press at Ben-Gurion International Airport, commenting on his most recent conversation with the Russian leader.

Netanyahu said that for the past three years, Israel had been “very successful” in preventing the Iranian military from establishing a presence in Syria, as well as its attempts to transfer “lethal weapons” to Hezbollah in Lebanon.

“This is not to say that there haven’t been exceptions, but all in all, there has been a great success,” he said. “We did all this with maximum and successful security coordination with the Russian military.”

Touching on the Russian spy plane that was shot down by errant Syrian fire over Latakia last week, killing 15 crew members and sparking a crisis between Moscow and Jerusalem, the prime minister said that he had spoken with Putin twice since the “tragic events.”

“I expressed to him our deep regret over the loss of the crew of the Russian plane that was brought down by irresponsible Syrian anti-aircraft fire,” he said.