Only recently has it begun to speak publicly about thwarting the weapons smuggling from Iran through Styria into Lebanon.
"We have been taking action with impressive success to arrest Iran's military entrenchment in Syria", Netanyahu told his cabinet in televised remarks.
"In just the last 36 hours, the air force struck Iran's warehouses, containing Iranian arms, in Damascus worldwide airport", he added, referring to a Friday night sortie that Syria said it had answered with anti-aircraft fire. "The bulk of recent attacks show how we are more committed than ever to act against Iran in Syria, as we promised".
Eisenkot, who will step down on Tuesday, will be replaced by Maj.More news: New software program goals to crack down on Netflix account sharing
In an interview with The New York Times, the general said that Israel had carried out attacks on "thousands of [Iranian] targets without claiming responsibility or asking for credit". Israel, coordinating with United Nations peacekeepers in Lebanon, said it sought no escalation.
He said this was part of a Hezbollah plan to send as many as 1,500 fighters to infiltrate Israeli border communities during any future war.
The attacks against Iranian targets and not only on Hezbollah arms convoys, were authorised by cabinet in 2017, he explained in his interview to the U.S. newspaper.
"According to our assessments, there are no longer any tunnels crossing into Israel", military spokesman Lieutenant-Colonel Jonathan Conricus said.
Conricus said there were no more tunnels reaching Israel from Lebanon but the army was still monitoring "facilities" being dug by Hezbollah inside Lebanese territory.More news: Jacob deGrom, Noah Syndergaard avoid arbitration
Under Eisenkot's command, Netanyahu said the IDF made "great achievements", but added that there "was much more work to be done, which we will do".
It is believed the tunnels were allowing militants to sneak across the border and carry out attacks.
With the sixth Hezbollah tunnel discovered Saturday afternoon, Israel declared victory and announced the completion of Operation Northern Shield on Sunday.
Hezbollah has not commented on the tunnels, the existence of several of which has been confirmed by Unifil peacekeepers.
In the wake of its discoveries, Israel has asked the global community to impose tough sanctions on Hezbollah and begin to act against its state-within-a-state operation in Lebanon. The military said its forces would stay deployed along the border to monitor for any other possible underground activity, and said it holds the Lebanese government responsible for everything happening within its territory.More news: Chez Reavie pulls off record-setting eagle barrage in Hawaii — Sony Open
Neither Lebanon nor Hezbollah has commented directly on the end of the operation.