Israel, which launched deadly air strikes Thursday and Friday on the Syrian side of the Golan Heights, has carried out several attacks on Syrian military positions since January 2013.

It has also targeted the powerful Lebanese Shiite movement Hezbollah, a key ally of Syrian President Bashar al-Assad.

-- 2013 --

- January 30: Israel's air force bombards a surface-to-air missiles site and adjacent military complex near Damascus suspected of holding chemical agents, with a US official saying Israel feared the transfer of weapons from Syria to Hezbollah. The New York Times says the raid could have damaged Syria's main research centre for biological and chemical weapons. Israel's defence minister implicitly confirms the raid and reaffirms that Israel will not allow arms transfers to Hezbollah.

 - May 3: A raid near Damascus targets Iranian weapons destined for Hezbollah, a senior Israeli official says.

 - May 5: A raid hits the Jamraya scientific research centre in Damascus, a weapons depot and an aircraft unit, reports a diplomat in Beirut. The Syrian Observatory for Human Rights says 42 soldiers are killed.

 - October 30: Fighter jets hit a military airbase in regime stronghold Latakia, western Syria, to halt a shipment of surface-to-air missiles to Hezbollah, according to Saudi-owned Al-Arabiya television.

--2014--

 - February 25: A Lebanese security source says two Israeli raids hit a Hezbollah target on the Lebanon-Syria border. The Observatory says the target was a Hezbollah "missile base".

 - March 19: At least one person is killed as warplanes attack Syrian army positions on the Golan Heights.

-June 23: Israel carries out retaliatory air raids on Syrian army positions following an attack from Syria.

- July 15: Warplanes strike three administrative and military targets on the Golan after the Israeli army said two rockets fired from the Syrian sector hit the Israeli-occupied side of the plateau.

- August 31: Israel downs a drone over the Golan.

- September 23: Israel shoots down a Syrian fighter jet as it attempts to fly over the Golan ceasefire line.

- December 7: Syria's army accuses Israel of striking two regime-held areas in Damascus province.

-- 2015 --

- January 18: Six Hezbollah fighters and an Iranian general are killed in an Israeli air strike on the Syrian side of the Golan. Hezbollah retaliates several days later by killing two Israeli soldiers.

- January 28: Israel carries out raids against Syrian army targets, saying Damascus was responsible for rocket fire that hit its side of the Golan.

- July 29: An air strike on a government-held village on the Syrian side of the Golan kills two Hezbollah militants and three pro-regime fighters, the Observatory says.

- August 20: Israel launches strikes on 14 Syrian army positions on the Golan in response to rockets fired from Syria on Israel's northern Galilee region. One person is killed, the Syrian military says.

- August 21: An Israeli strike on the Syrian side of the Golan kills five, Syrian state television says.
Source: AFP