After Israel turned Hezbollah’s communications system against it with deadly force, officials and experts wonder if a bigger war is coming.

Israel’s attack on Hezbollah’s communication devices raised expectations of a decisive shift in their war of attrition. Instead, the fighting has returned to a standoff.

Bulgaria and Norway became new focal points on Thursday of a global hunt for who supplied Hezbollah with the thousands of pagers that exploded in Lebanon this week in a deadly blow to the militant group.