Hamas leader Yahya Sinwar touted reconciliation with Iran on Monday, calling Tehran “the largest supporter” of the movement’s armed wing. Sinwar’s first press briefing since his election in February pointed to improved ties between the two parties since their fallout over the war in Syria. Iran had reduced its aid to Izz ad-Din al-Qassam Brigades after Hamas refused to support Syrian President Bashar al-Assad. "The relationship today is developing and returning to what it was in the old days,” Sinwar said, without providing details about Iran’s support.
At the moment, Hezbollah deploys roughly 5,000 fighters in Syria – roughly one quarter of its standing forces. If and when those fighters return to Lebanon, Hezbollah leaders may feel emboldened to step up attacks on Israeli soil.
IDF Would Face an Old Foe Battle-Tested by Syria | David Schenker, Former Levant Country Director, Office of the Secretary of Defense
"Hezbollah has recruited additional troops, which they have deployed over 4 years or 5 years into Syria. They have gained valuable combat experience, developed an ability to launch offensive operations, which they never had before, and they have emerged with a larger core of battle-hardened troops."
An Israeli War with Hezbollah Risks War with Iran | Randa Slim, Director, Track II Dialogues Initiative, Middle East Institute
If Iran and Hezbollah were to expand their military presence near the Israeli-controlled Golan Heights, Tel Aviv might come to the conclusion that it has no choice but to attack Hezbollah forces positioned there. Given Nasrallah’s recent warning of a multi-front war, the all-out battle that analysts have been predicting for the last 11 years might then become a fait accompli.