TEL AVIV, Israel (AP) The Israeli military is preparing for a possible ground operation in Lebanon, the Israeli army chief said Wednesday as Hezbollah fired dozens of rockets into Israel and a missile aimed at Tel Aviv that was the militant groups deepest strike yet.

Addressing troops on the northern border, Chief of Staff Lt. Gen. Herzi Halevi said the latest airstrikes were designed to prepare the ground for your possible entry and to continue degrading Hezbollah.

In an apparent reference to the missile fired at Tel Aviv, he told troops: Today, Hezbollah expanded its range of fire, and later today, they will receive a very strong response. Prepare yourselves.

It was not clear whether Halevi was referring to a ground operation, airstrikes or some other form of retaliation against Hezbollah, which is Lebanons strongest political force and, with backing from Iran, is widely considered the top paramilitary group in the Arab world.

The Israeli military has said in recent days it had no immediate plans for a ground invasion. Halevis comments were the strongest yet suggesting troops could move in.

With hostilities intensifying, the Israeli military said Wednesday it would activate two reserve brigades for missions in the north another sign that Israel plans tougher action.