This undated image released by the U.S. Government shows a building after it was bombed in Syria.
James Jeffrey, a former senior American diplomat and Middle East expert, gave his recollections from the 2007 Israeli bombing of Syrian President Bashar Assad's nuclear reactor in an interview with Army Radio Wednesday morning.
The admission comes after Israeli military censors lifted an order banning officials from discussing the operation.
According to Air force commander Major General Amikam Norkin, the strike has been vindicated by the conflict and chaos in Syria, as the reactor was in an area that was later under the control of Islamic State.
"The message from the attack on the nuclear reactor in 2007 is that the State of Israel will not allow the establishment of capabilities that threaten Israel's existence", military chief Lieutenant-General Gadi Eizencot said in the statement. "This was the message in 1981, this is the message in 2007 and this is the future message to our enemies". "In historic hindsight, I think Israel's decision to destroy the reactor is one of the most important decisions taken here in the last 70 years".
The Israeli Defence Force bombed the site because they believed the nuclear facility would be completed by the end of that year.
Israel's decision to go public and justify the decade-old strike against Syria comes after repeated calls in recent months by Israeli Prime Minister Benjamin Netanyahu for the United States and worldwide community to take tougher action against Iran, which is Syrian President Bashar al-Assad's closest ally.
Mr Netanyahu has repeatedly warned Israel will not allow Iran to develop a nuclear weapon "not now, not in 10 years, not ever", or to build missile factories in Syria that could threaten Israel, or provide advanced weapons for Hezbollah, the Iran-backed Shiite group in Lebanon.
The Trump administration has also been locked in nuclear brinkmanship with North Korea - which the United States has previously said it believed supplied the Al-Kubar reactor.
"Very early it was clear to us that this was a North Korean enabled plutonium enrichment reactor that was clearly created to advance a nuclear weapons program".
"Everybody in the region saw that if you are trying to get an illicit nuclear weapons program and you come very close - we're talking about weeks, if not sooner, in the Syria case - it is quite possible that you will be facing military actions".