Strike Lebanon if Hezbollah attacks –

If Hezbollah attacks, go to war with Lebanon, ex national security adviser urges – The Times of Israel 24.12.15
‘In addition to Hezbollah targets, we should also attack Lebanon’s army, airports, seaports and other strategic assets,’ argues former IDF operations chief Giora Eiland

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And see: Hezbollah reportedly pressed to avoid attacking Israel – The Times of Israel 26.12.15                                                                                                                                According to Kuwaiti paper, foreign officials have warned terror group that retaliation for Kuntar killing could prompt crushing Israeli response