Ehud Barak, former Israeli Prime Minister and Chairman of Canndoc, an Israeli producer of medical grade cannabis, poses for a picture near boxes containing a shipment of medical cannabis, in Lod, Israel January 5, 2020. REUTERS/Steven Scheer 

Former Israeli Prime Minister Ehud Barak leaves after delivering a statement in Tel Aviv, Israel June 26, 2019. REUTERS/Corinna Kern 

Former Israeli Prime Minister Ehud Barak arives before delivering a statement in Tel Aviv, Israel June 26, 2019. REUTERS/Corinna Kern 

Former Israeli Prime Minister Ehud Barak gestures after delivering a statement in Tel Aviv, Israel June 26, 2019. REUTERS/Corinna Kern 

Former Israeli Prime Minister Ehud Barak delivers a statement in Tel Aviv, Israel June 26, 2019. REUTERS/Corinna Kern 

Former Israeli Prime Minister Ehud Barak delivers a statement in Tel Aviv, Israel June 26, 2019. REUTERS/Corinna Kern 

Former Israeli Prime Minister Ehud Barak delivers a statement in Tel Aviv, Israel June 26, 2019. REUTERS/Corinna Kern 

Former Israeli Prime Minister Ehud Barak delivers a statement in Tel Aviv, Israel June 26, 2019. REUTERS/Corinna Kern 

Ehud Barak, chairman of InterCure, a holding company of small medical firms, that bought medical cannabis developer Canndoc, speaks during an interview with Reuters in Tel Aviv, Israel January 29, 2019. Picture taken January 29, 2019. REUTERS/Ronen Zvulun 

Ehud Barak, chairman of InterCure, a holding company of small medical firms, that bought medical cannabis developer Canndoc, speaks during an interview with Reuters in Tel Aviv, Israel January 29, 2019. Picture taken January 29, 2019. REUTERS/Ronen Zvulun 

Ehud Barak, chairman of InterCure, a holding company of small medical firms, that bought medical cannabis developer Canndoc, speaks during an interview with Reuters in Tel Aviv, Israel January 29, 2019. Picture taken January 29, 2019. REUTERS/Ronen Zvulun 

Former Israeli Prime Minister Ehud Barak pays respect to Amos Oz, Israel's best-known author, who died of cancer at the age of 79, as his coffin is placed at a Tel Aviv theatre, Israel December 31, 2018 REUTERS/Amir Cohen 

Former Israeli Prime Minister Ehud Barak (2nd L), who is also chairman and investor of Reporty, poses for a picture with founders of Reporty Alex Dizengof (L), Amir Elichai and Lital Leshem (R) during the launch of a system, downloaded as a phone app and developed by start-up Reporty, whereby people can make live video distress calls to emergency responders, in Tel Aviv, Israel March 16, 2016. REUTERS/Baz Ratner 

Former Prime Minister of Israel Ehud Barak and his wife Nili Priel arrive for the TIME 100 Gala in New York April 21, 2015. REUTERS/Brendan McDermid

Former Israel Deputy Prime Minister and Defence Minister Ehud Barak arrives on the red carpet during the 2nd annual Breakthrough Prize Award in Mountain View, California November 9, 2014. REUTERS/Stephen Lam (UNITED STATES - Tags: ENTERTAINMENT SCIENCE TECHNOLOGY POLITICS MILITARY) 

Former Israel Deputy Prime Minister and Defence Minister Ehud Barak (L) and his wife Nili Priel arrive on the red carpet during the 2nd annual Breakthrough Prize Award in Mountain View, California November 9, 2014. REUTERS/Stephen Lam (UNITED STATES - Tags: ENTERTAINMENT SCIENCE TECHNOLOGY POLITICS MILITARY) 

Former Israeli Deputy Prime Minister and Defence Minister Ehud Barak (L) and his wife Nili Priel arrive on the red carpet during the 2nd annual Breakthrough Prize Award in Mountain View, California November 9, 2014. REUTERS/Stephen Lam (UNITED STATES - Tags: ENTERTAINMENT SCIENCE TECHNOLOGY POLITICS MILITARY) 

People watch an official changeover ceremony between incoming Israeli Defence Minister Moshe Yaalon and outgoing minister Ehud Barak at the Defence Ministry in Tel Aviv March 19, 2013. Prime Minister Benjamin Netanyahu chose Yaalon, a right-wing former armed forces chief, to be Israel's defence minister on Sunday, saying his experience was needed to tackle challenges in a turbulent Middle East. REUTERS/Nir Elias (ISRAEL - Tags: POLITICS MILITARY) 

Incoming Israeli Defence Minister Moshe Yaalon (L) and outgoing Defence Minister Ehud Barak walk together during an official changeover ceremony at the Defence Ministry in Tel Aviv March 19, 2013. Prime Minister Benjamin Netanyahu chose Yaalon, a right-wing former armed forces chief, to be Israel's defence minister on Sunday, saying his experience was needed to tackle challenges in a turbulent Middle East. REUTERS/Nir Elias (ISRAEL - Tags: POLITICS MILITARY) 

Israel's armed forces chief, Lieutenant-General Benny Gantz (R) salutes as he stands next to incoming Defence Minister Moshe Yaalon (L) and outgoing Defence Minister Ehud Barak during an official changeover ceremony at the Defence Ministry in Tel Aviv March 19, 2013. Prime Minister Benjamin Netanyahu chose Yaalon, a right-wing former armed forces chief, to be Israel's defence minister on Sunday, saying his experience was needed to tackle challenges in a turbulent Middle East. REUTERS/Nir Elias (ISRAEL - Tags: POLITICS MILITARY) 

Israel's Prime Minister Benjamin Netanyahu speaks during a farewell event for outgoing Defence Minister Ehud Barak at Bar-Ilan University near Tel Aviv March 13, 2013. REUTER/Baz Ratner (ISRAEL - Tags: POLITICS) 

Israel's Prime Minister Benjamin Netanyahu speaks during a farewell event for outgoing Defence Minister Ehud Barak at Bar-Ilan University near Tel Aviv March 13, 2013. REUTER/Baz Ratner (ISRAEL - Tags: POLITICS) 

Israeli Defence Minister Ehud Barak gestures during the 49th Conference on Security Policy in Munich February 3, 2013. Senior politicians along with the leader of the Syrian opposition are in Munich providing a rare opportunity for talks to revive efforts to end the civil war in Syria. REUTERS/Michael Dalder(GERMANY - Tags: MILITARY POLITICS) 

Israeli Defence Minister Ehud Barak gestures during the 49th Conference on Security Policy in Munich February 3, 2013. Senior politicians along with the leader of the Syrian opposition are in Munich providing a rare opportunity for talks to revive efforts to end the civil war in Syria. REUTERS/Michael Dalder(GERMANY - Tags: MILITARY POLITICS) 

Israeli Defence Minister Ehud Barak arrives at the 49th Conference on Security Policy in Munich February 3, 2013. Senior politicians along with the leader of the Syrian opposition are in Munich providing a rare opportunity for talks to revive efforts to end the civil war in Syria. REUTERS/Michael Dalder(GERMANY - Tags: MILITARY POLITICS) 

Israeli Defence Minister Ehud Barak gestures during the 49th Conference on Security Policy in Munich February 3, 2013. Senior politicians along with the leader of the Syrian opposition are in Munich providing a rare opportunity for talks to revive efforts to end the civil war in Syria. REUTERS/Michael Dalder(GERMANY - Tags: MILITARY POLITICS) 

Israeli Defence Minister Ehud Barak gestures during the 49th Conference on Security Policy in Munich February 3, 2013. Senior politicians along with the leader of the Syrian opposition are in Munich providing a rare opportunity for talks to revive efforts to end the civil war in Syria. REUTERS/Michael Dalder(GERMANY - Tags: MILITARY POLITICS) 

Israeli Defence Minister Ehud Barak arrives at the 49th Conference on Security Policy in Munich February 3, 2013. Senior politicians along with the leader of the Syrian opposition are in Munich providing a rare opportunity for talks to revive efforts to end the civil war in Syria. REUTERS/Michael Dalder(GERMANY - Tags: MILITARY POLITICS) 

Israeli Defence Minister Ehud Barak and U.S. Vice President Joe Biden (R) meet at the 49th Conference on Security Policy in Munich February 2, 2013. Senior U.S., Russian and U.N. officials, along with the leader of the Syrian opposition, were all expected in Munich on Saturday, providing a rare opportunity for talks to revive efforts to end the civil war in Syria. REUTERS/Michael Dalder (GERMANY - Tags: MILITARY POLITICS TPX IMAGES OF THE DAY) 

Deputy Prime Minister and Defence Minister of Israel Ehud Barak addresses delegates during the annual meeting of WEF in Davos January 24, 2013. REUTERS/Denis Balibouse (SWITZERLAND - Tags: POLITICS BUSINESS)

Israel's Defence Minister Ehud Barak and German Defence Minister Thomas de Maiziere arrive for a family picture before German-Israeli government consultations at the Chancellery in Berlin December 6, 2012. Benjamin Netanyahu was disappointed by Germany's decision to abstain in a U.N. vote on the Palestinians' status and believes the move harmed peace, the Israeli leader was quoted on Wednesday as saying. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS) 

Israel's Defence Minister Ehud Barak (3rd R) shakes hands with German with German Finance Minister Wolfgang Schaeuble (R) before German-Israeli government consultations at the Chancellery in Berlin December 6, 2012. Netanyahu was disappointed by Germany's decision to abstain in a U.N. vote on the Palestinians' status and believes the move harmed peace, the Israeli leader was quoted on Wednesday as saying. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS) 

Israel's Defence Minister Ehud Barak (L) shakes hands with German with German Finance Minister Wolfgang Schaeuble before German-Israeli government talks at the Chancellery in Berlin December 6, 2012. Netanyahu was disappointed by Germany's decision to abstain in a U.N. vote on the Palestinians' status and believes the move harmed peace, the Israeli leader was quoted on Wednesday as saying. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS) 

Israel's Defence Minister Ehud Barak arrives at Czech government headquarters in Prague December 5, 2012. REUTERS/David W Cerny (CZECH REPUBLIC - Tags: POLITICS MILITARY) 

Czech Republic's Defence Minister Alexandr Vondra (R) and his Israeli counterpart Ehud Barak wait for a family photograph at the government headquarters in Prague December 5, 2012. REUTERS/David W Cerny (CZECH REPUBLIC - Tags: POLITICS MILITARY) 

Czech Republic's Prime Minister Petr Necas (R), Israel's Prime Minister Benjamin Netanyahu (C) and Israel's Defence Minister Ehud Barak pose for a picture at government headquarters in Prague December 5, 2012. REUTERS/David W Cerny (CZECH REPUBLIC - Tags: POLITICS) 

Charles Bronfman, businessman and philanthropist (L), leans over Israeli Defense Minister Ehud Barak (C) to greet Israeli Foreign Minister Avigdor Lieberman, during the 2012 Saban Forum on U.S.-Israel Relations at the Willard Intercontinental Hotel in Washington November 30, 2012. REUTERS/Mary F. Calvert (UNITED STATES - Tags: POLITICS) 

Israeli Defense Minister Ehud Barak (L) speaks with Israeli Foreign Minister Avigdor Lieberman during the 2012 Saban Forum on U.S.-Israel Relations at the Willard Intercontinental Hotel in Washington, November 30, 2012. REUTERS/Mary F. Calvert (UNITED STATES - Tags: POLITICS) 

Israel's Defence Minister Ehud Barak pauses during a news conference in Tel Aviv November 26, 2012. Barak, a main architect of Israel's policy toward Iran's nuclear programme, said in a surprise announcement on Monday that he was quitting politics and would not run in the January 22 national election. REUTERS/Nir Elias (ISRAEL - Tags: POLITICS MILITARY) 

Israel's Defence Minister Ehud Barak leaves after a news conference in Tel Aviv November 26, 2012. Barak, a main architect of Israel's policy towards Iran's nuclear programme, said in a surprise announcement on Monday that he was quitting politics and would not run in the January 22 national election. REUTERS/Nir Elias (ISRAEL - Tags: POLITICS MILITARY) 

Israel's Defence Minister Ehud Barak (C) speaks during a news conference in Tel Aviv November 26, 2012. Barak, a main architect of Israel's policy toward Iran's nuclear programme, said in a surprise announcement on Monday that he was quitting politics and would not run in the January 22 national election. REUTERS/Nir Elias (ISRAEL - Tags: POLITICS MILITARY TPX IMAGES OF THE DAY) 

Israel's Defence Minister Ehud Barak (R) speaks during a news conference in Tel Aviv November 26, 2012. Barak, a main architect of Israel's policy toward Iran's nuclear programme, said in a surprise announcement on Monday that he was quitting politics and would not run in the January 22 national election. REUTERS/Nir Elias (ISRAEL - Tags: POLITICS MILITARY) 

Israel's Defence Minister Ehud Barak speaks during a news conference in Tel Aviv November 26, 2012. Barak, a main architect of Israel's policy towards Iran's nuclear programme, said in a surprise announcement on Monday that he was quitting politics and would not run in the January 22 national election. REUTERS/Nir Elias (ISRAEL - Tags: POLITICS MILITARY) 

Israel's Defence Minister Ehud Barak waves as he leaves after a news conference in Tel Aviv November 26, 2012. Barak, a main architect of Israel's policy toward Iran's nuclear programme, said in a surprise announcement on Monday that he was quitting politics and would not run in the January 22 national election. REUTERS/Nir Elias (ISRAEL - Tags: POLITICS MILITARY) 

Israel's Prime Minister Benjamin Netanyahu (R) takes a seat next to Foreign Minister Avigdor Lieberman (bottom) as Defence Minister Ehud Barak walks to deliver a statement in Jerusalem November 21, 2012. Netanyahu hinted on Wednesday that if an Egyptian-brokered truce with Islamist militants in Gaza did not work Israel would consider "more severe military action" against the Palestinian territory. REUTERS/Baz Ratner (JERUSALEM - Tags: POLITICS CONFLICT) 

Israel's Defence Minister Ehud Barak (R) and Foreign Minister Avigdor Lieberman (C) listen as Prime Minister Benjamin Netanyahu delivers a statement in Jerusalem November 21, 2012. Netanyahu hinted on Wednesday that if an Egyptian-brokered truce with Islamist militants in Gaza did not work Israel would consider "more severe military action" against the Palestinian territory. REUTERS/Baz Ratner (JERUSALEM - Tags: POLITICS CIVIL UNREST) 

Israelis watch Defence Minister Ehud Barak on television as they prepare to sleep in a bomb shelter in the southern town of Netivot November 14, 2012. Israel launched a major offensive against Palestinian militants in Gaza on Wednesday, killing the military commander of Hamas in an air strike and threatening an invasion of the enclave that the Islamist group vowed would "open the gates of hell". REUTERS/Nir Elias (ISRAEL - Tags: POLITICS CIVIL UNREST) 

Israel's Defence Minister Ehud Barak (R) sits near Prime Minister Benjamin Netanyahu as he delivers a statement to the media in Tel Aviv November 14, 2012. Israel launched a major offensive against Palestinian militants in Gaza on Wednesday, killing the military commander of Hamas in an air strike and threatening an invasion of the enclave that the Islamist group vowed would "open the gates of hell". REUTERS/Ronen Zvulun (ISRAEL - Tags: POLITICS CIVIL UNREST) 

Israel's Defence Minister Ehud Barak (front 2nd R) walks with Major General Yair Naveh, deputy military chief (front 2nd L), during a visit to a military base near Kibbutz Reim, outside the central Gaza Strip November 13, 2012. Israeli aircraft struck three times in Gaza in the early hours of Tuesday morning, hitting a weapons storage facility and two rocket launching sites used by militants, the military said in a statement. REUTERS/Amir Cohen (ISRAEL - Tags: MILITARY POLITICS CIVIL UNREST) 

Israel's Defence Minister Ehud Barak (front, L) sits across from Prime Minister Benjamin Netanyahu (C) during the weekly cabinet meeting in Jerusalem November 11, 2012. Israel said it was poised to escalate attacks on the Gaza Strip on Sunday following a surge of rocket and mortar salvoes by Hamas and other factions in the Palestinian enclave. But conservative Netanyahu may be reluctant to seem weak ahead of a Jan. 22 general election that opinion polls currently predict he will win. Barak, a centrist in Israel's coalition government, played down speculation that the upcoming election was affecting Gaza policy. REUTERS/Sebastian Scheiner/Pool (JERUSALEM - Tags: POLITICS CIVIL UNREST) 

Israel's Prime Minister Benjamin Netanyahu (4th R) and Defence Minister Ehud Barak (front L) visit an Iron Dome rocket shield command centre near Kibbutz Nitzanim, north of Ashkelon October 24, 2012. Palestinians fired dozens of rockets into Israel from Gaza on Wednesday and an Israeli air strike killed a militant in a surge of violence after the Emir of Qatar embraced the enclave's Hamas leadership with a visit. REUTERS/Ronen Zvulun (ISRAEL - Tags: POLITICS CIVIL UNREST) 

Israel's Prime Minister Benjamin Netanyahu (R) and Defence Minister Ehud Barak (centre L) visit an Iron Dome rocket shield command centre near Kibbutz Nitzanim, north of Ashkelon October 24, 2012. Palestinians fired dozens of rockets into Israel from Gaza on Wednesday and an Israeli air strike killed a militant in a surge of violence after the Emir of Qatar embraced the enclave's Hamas leadership with a visit. REUTERS/Ronen Zvulun (ISRAEL - Tags: POLITICS CIVIL UNREST) 

Israel's Defence Minister Ehud Barak (2nd L) stands with U.S. soldiers as he visits a Patriot anti-missile battery west of Jerusalem, during "Austere Challenge 2012", a joint Israeli-hosted exercise October 23, 2012. The three-week drill, the largest the allies have ever held, simulates a variety of long and short-range missile attacks that Israel could face during a regional conflict, said the commanders in charge. REUTERS/Ronen Zvulun (ISRAEL - Tags: POLITICS MILITARY) 

Israel's Defence Minister Ehud Barak (R) speaks with U.S. soldiers as he visits a Patriot anti-missile battery west of Jerusalem, during "Austere Challenge 2012", a joint Israeli-hosted exercise October 23, 2012. The three-week drill, the largest the allies have ever held, simulates a variety of long and short-range missile attacks that Israel could face during a regional conflict, said the commanders in charge. REUTERS/Ronen Zvulun (ISRAEL - Tags: POLITICS MILITARY) 

Israel's Prime Minister Benjamin Netanyahu (L), Defence Minister Ehud Barak (R) and military chief Lieutenant-General Benny Gantz (2nd R) stand together after observing an earthquake drill in Holon, near Tel Aviv October 21, 2012. Israel held its first major earthquake drill on Sunday, stepping away from simulated Iranian missile salvoes though officials insisted the country remained ready for any war with its arch-foe. REUTERS/Nir Elias (ISRAEL - Tags: DISASTER MILITARY POLITICS TPX IMAGES OF THE DAY) 

Israel's Prime Minister Benjamin Netanyahu (R) sits across from Defence Minister Ehud Barak (L) during the weekly cabinet meeting in Jerusalem October 14, 2012. Israel's cabinet announced on Sunday a January 22 date for a national election, a ballot that opinion polls predict Netanyahu will win. REUTERS/Jim Hollander/Pool (JERUSALEM - Tags: POLITICS ELECTIONS) 

Israel's Defence Minister Ehud Barak attends the weekly cabinet meeting in Jerusalem October 14, 2012. Israel's cabinet announced on Sunday a January 22 date for a national election, a ballot that opinion polls predict Prime Minister Benjamin Netanyahu will win. REUTERS/Jim Hollander/Pool (JERUSALEM - Tags: POLITICS ELECTIONS HEADSHOT) 

Israel's Defence Minister Ehud Barak (back to camera) sits across from Prime Minister Benjamin Netanyahu (3rd R) during the weekly cabinet meeting in Jerusalem October 14, 2012. Israel's cabinet announced on Sunday a January 22 date for a national election, a ballot that opinion polls predict Netanyahu will win. REUTERS/Jim Hollander/Pool (JERUSALEM - Tags: POLITICS) 

Germany's Foreign Minister Guido Westerwelle speaks to the media after his meeting with Israel's Defence Minister Ehud Barak in Jerusalem September 9, 2012. Westerwelle urged Iran on Sunday to bring "substantial offers" to restart nuclear negotiations with world powers and assured Israel that allowing the Islamic Republic to get the bomb was "not an option". REUTERS/Baz Ratner (JERUSALEM - Tags: POLITICS)