Lebanon made a game-changing decision by tasking the Army with preparing a plan to enforce a state monopoly on weapons, poses a new challenge to Hezbollah.

In June, U.S. envoy Thomas Barrack proposed a roadmap to Lebanese officials to fully disarm Hezbollah in exchange for Israel halting its strikes on Lebanon and withdrawing its troops from five points they still occupy in southern Lebanon.

Hezbollah said on Wednesday the Lebanese government was committing a "grave sin" by tasking the army with establishing a state monopoly on arms, sharpening a national divide over calls for the Shi'ite Muslim group to disarm.