Armored bulldozers were also massively employed in Rafah to counter terrorist smuggling tunnels. Human Rights Watch published a report criticizing the extensive destruction of Palestinian houses in the southern Gaza strip, and said it was unlawful, claiming that Israel uses the Palestinian smuggling tunnels as a pretext to create a "buffer zone" along the Gaza-Egypt border. In Rafah, the Combat Engineering Corps formed a special unit, designated for searching and destroying smuggling tunnels, it is called SAMUR and now belongs to Yaalom. They also received an honor of recommendation, for their conduct. Until the Gaza Disengagement plan, the Combat Engineering 603 battalion's reconnaissance platoon (מחס"ר) held a record of over 70 terrorists killed in 2004–2005 on the border between the Gaza Strip and Israel. They received a recommendation of honor for this achievement.