Gadi Eisenkot, a former head of Israel¡¯s armed forces, has emerged as the main challenger to Benjamin Netanyahu in upcoming elections that could end the premiership of the country¡¯s longest-serving leader.

Polls indicate that Eisenkot¡¯s new party Yashar ¡ª Hebrew for ¡°straightforward¡± or honest¡± ¡ª will get slightly more seats than Netanyahu¡¯s Likud in the Oct. 27 vote, which would give him the right to try and form a coalition government. Stocky and somber, untested in domestic politics and a stranger to foreign-policy circles, the 66-year-old ex-general represents a stark contrast to the articulate and telegenic Netanyahu, in style if not so much in policy.

The ballot will double as a verdict on Netanyahu, 76, whose most recent term has been punctuated by near constant war, corruption cases, constitutional feuding and the growing isolation of Israel on the global stage.