A key party in Israeli Prime Minister Benjamin Netanyahu’s newly expanded right-wing coalition threatened to bring it down Sunday over a demand related to the military

A key party in Israeli Prime Minister Benjamin Netanyahu's newly expanded right-wing coalition threatened to bring it down Sunday over a demand related to the military.

The Jewish Home party, whose leader Naftali Bennett is a political rival to Netanyahu, said it would vote against the expanded coalition in parliament if its demand was not met.

The ‘religious’ nationalist party holds eight seats, enough to block Netanyahu's proposed new line-up, Zionist reports said.

The expanded coalition was agreed to Wednesday when Netanyahu controversially joined forces with ultra-nationalist Avigdor Lieberman, set to become defense minister.

Parliament is expected to vote Monday on the deal, which would form what is seen as the most right-wing government in the Zionist history.

"We will vote against if the issue is not resolved," Justice Minister Ayelet Shaked of Jewish Home told army radio.

Asked about the chances of new elections over the issue, she said it was a "possibility."

Bennett says such a post is needed to avoid ‘security’ cabinet members being kept in the dark on important developments, pointing to aspects of the 2014 conflict with Palestinian resistance fighters in Gaza, among other Zionist concerns.

"I am not prepared to have soldiers die because the security cabinet is left blind due to someone's ego," Bennett wrote on social media, referring to Netanyahu.