The Battles of the Kinarot Valley (הַמַּעֲרָכָה בְּבִקְעַת כִּנָּרוֹת, HaMa'arakha BeBik'at Kinarot), is a collective name for a series of military engagements between the Haganah and the Syrian army during the 1948 Arab–Israeli War, fought between 15–22 May 1948 in the Kinarot Valley. It includes two main sites: the Battle of Degania–Samakh (Tzemah), and battles near Masada–Sha'ar HaGolan. The engagements were part of the battles of the Jordan Valley, which also saw fighting against Transjordan in the area of Gesher.
The battles took place approximately 24 hours after the Israeli declaration of independence, when Syria shelled Ein Gev on the night of 15–16 May. This was the first military engagement between Israel and Syria. On 18 May, Syria attacked the Israeli forward position in Samakh (Tzemah), and on 20 May attacked Degania Alef and occupied Masada and Sha'ar HaGolan. The attack on Degania Alef was a failure, after which the Syrian forces attempted to capture Degania Bet. After reaching a stalemate, they retreated to their initial position in Tel al-Qasr, where they remained until the end of the war.
The campaign was perceived as a decisive Israeli victory, causing reorganizations in the Syrian high command and the birth of heroic tales in Israel. However, Syria made a small territorial gain and certain actions were criticized within Israel, such as the retreat from Masada and Sha'ar HaGolan.
The first stage of the 1948 War started following the ratification of UN Resolution 181 on 29 November 1947, which granted Israel the mandate to declare independence. This was declared on 14 May 1948 and the next night, the armies of a number of Arab states invaded Israel and attacked Israeli positions.
The Arab states surrounding the Mandate of Palestine started to prepare themselves a few weeks before 15 May. According to the Arab plan, the Syrian army was to attack the new state from southern Lebanon and capture Safed.