Last week, in a rare confirmation of such operations, Israel said its warplanes carried out a "very intense" attack against Iranian forces and Syrian army targets in Syria.
The results from Israel's election committee showed Gantz's party with 33 seats and Prime Minister Benjamin Netanyahu's right-wing Likud with 31.
Netanyahu, who has been leading the executive since 2009 (and had previously served as Premier between 1996-99) said he had already initiated negotiations with Likud's potential coalition partners on the right.
