The Israeli military declared its northern border with Lebanon a closed military zone on Sunday as deadly [clashes with Hezbollah forces](https://ift.tt/0N5PbAr) intensified. The move marks another step in Israel's efforts to prepare for the possibility that the Lebanese militant group could open a second front to aid Hamas fighters in the Gaza Strip. Israel has moved new forces north as the bulk of the army prepares to launch a ground operation in the south against Hamas militants in the Gaza Strip.
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