Speaking on public radio on Monday, Boim's comment came less than 24 hours after Israeli soldiers forced their way into two Palestinian refugee camps, killing 15 and wounding more than 80.
"For months, we have been facing a situation where we have an average of 50 alerts a day on attacks planned by armed Palestinian groups, and the only way to foil them is to continue operations."
"This operation left 15 Palestinians dead … including four teenagers who were not so innocent since they had responded to the call from the mosques to support the terrorists," he added.
Israeli army chief Moshe Yaalon claimed in the Israeli press that the civilians killed in the operation were hit by Palestinian bullets.
The promise of future raids came as troops shot dead a Palestinian teenager on Monday.
Coming too close to a Jewish settlement in the Gaza Strip, 16-year-old Khalid Madi was shot in the back by soldiers.
He was working in a field belonging to his family near the settlement of Morag in the southern Gaza Strip, witnesses said.
The Palestinian resistance group Hamas has vowed to maintain its resistance despite yesterday's deaths.
Angry mouners attend the funeral
of victims killed during Israeli raid
According to the organisation's website, resistance fighters from Izz al-Din al-Qassam Brigades said they knocked out two Israeli tanks during the refugee camp invasion, and scored direct hits on two more.
Hamas has also vowed to avenge an Israeli occupation army offensive in the central Gaza Strip, even as Israel promised more of the same.
"This massacre will not pass without punishment," Ismail Haniya, a senior leader of the group in Gaza, told reporters.
"This massacre will only make our people stronger and more determined to continue the resistance."
However, Hamas said in a statement six members of its armed wing, Izz al-Din al-Qassam Brigades, were killed in al-Nusairat refugee camp, while another three were killed in al-Buraij camp.
Among those killed in the operation was a local leader of the Brigades, 44-year-old Hasan Zahut, it added.
Palestinian medical sources said three boys, aged eight, 12 and 15, were among those killed in the clashes around the entrance to the neighbouring camps.
Earlier on Monday, the Palestinian resistance fired a makeshift rocket which landed close to the illegal Israeli settlement, but no-one was injured.