(JTA) — Israeli Defense Minister Benny Gantz said Tuesday that his party will back a bill crafted by the opposition in parliament to dissolve the government, likely sending Israel to its fourth election in two years.

The votes from Gantz’s Blue and White would provide the needed votes for the measure to pass in the Knesset.

Gantz and Benjamin Netanyahu, the prime minister, formed a unity government earlier this year by agreeing to rotate the premiership after 18 months, but the two have been at odds from the outset of the partnership. Their latest logjam involves a two-year national budget tha...