By Humeyra Pamuk WASHINGTON, June 16 (Reuters) - U.S. President Donald Trump on Tuesday issued a rare public rebuke of Israel's military tactics in Lebanon targeting Hezbollah militants, saying it was unnecessary to bomb entire apartment buildings to hunt militants. Trump, who in recent days had expressed his displeasure over Israeli attacks in Beirut that he said could have endangered his peace deal with Iran, said Israel has been fighting Hezbollah, the Iran-aligned Lebanese militia, for "too long".