The State Information Service (SIS) said that Friday’s Rafah attack

The State Information Service (SIS) said that Friday’s Rafah attack, which coincided with celebrations of the anniversary of June 30 Revolution and getting rid of the rule of the Brotherhood on July 3, 2013, is the second of its kind against the forces of the Egyptian army in 18 months since the end of 2015. 
The first operation during this period was committed on March 9, 2017 which left three officers dead and seven servicemen wounded. Today's operation is the first in two years regarding the high number of casualties since the major terrorist operation on July 1, 2015, the SIS added in a statement.
During the period of about one year and a half, the Egyptian army succeeded in minimizing terrorist operations targeting the army forces in the site of conflict which extends from eastern Arish city to western Rafah city reaching al-Hassana area in the south over an area of about 30-50 square kilometers out of the total area of North Sinai, it added.
During one year and a half and since the start of the "Right of the Martyr" Operations (1,2 and 3), the Egyptian army forces managed to achieve two goals that helped decreased the rate of terrorist operations which reached six in number during the first half of this year in Sinai and around 25 operations nationwide compared to the year 2015 where they reached 532 operations nationwide including 130 in Sinai, it said. 
This means a sharp decrease in the terrorist operations nationwide and in Sinai in particular due to the weakness of the structure of the terrorist organization and the success of the military operations of the Egyptian army since the start of the "Right of the Martyr" Operation.
The Egyptian army achieved two goals: First controlling villages where the terrorists were stationing before July 1, 2015 and second the deployment of the army forces in a way that helped minimize the number of fixed security checkpoints and controlling strategic areas controlling roads between the different areas, it added.
About the motives of the attack, the SIS said there are some goals that are sought by the terrorist groups to be achieved through today's terrorist operation. With analyzing the nature and tactics of this operation we can figure out the following:
First: As for the nature of the target: This security checkpoint is located on top of a hill that overlooks all roads and passages linking the area's villages and this way helps minimize the movement of terrorist elements.
Second: The terrorist groups seek from this operation to claim that they are still having a combat capability in light of the immense losses they were incurred by the Egyptian army since the start of the "Right of the Martyr" operations.
Third: This terrorist operation comes at a time when the Egyptian army succeeded in liquidating many of the leaders of Beit al-Maqdes organization. This was reflected on weakening the structure of the organization and sapping its capabilities.
Concerning the context of the attack, it added that the operation comes hours after liberating the Iraqi city of Mosul from Daesh terrorist group at a time when the group lost large swathes of land in Syria as well due to the strikes by the international coalition and the Russian and Syrian forces along with the big defeats of the group and its allies in Libya by the Libyan National Army over the past few days. This state of affairs leads Daesh terrorist group to open new flashpoints in some areas outside its major area of deployment which they lost in Syria and Iraq to achieve two goals.
First: To attract the attention of international media away from the collapse of its capabilities in Syria and Iraq so that to minimize psychological pressure on its grassroots. 
Second: Daesh terrorist group seeks to show that it still has organizational capabilities in the region.
It pointed out that using around 12 vehicles including three booby-trapped cars in the terrorist attack indicated that this operation was meant to control the military checkpoint as was the case in the operation of Karam al-Kawades on July 1, 2015 due to an absence of the group in all nearby villages and because its elements are hiding in desert areas. 
Also, the strategic location of the checkpoint on top of a hill made it easy for the Egyptian army forces to deal with the terrorist elements attacking the checkpoint and killing more than 40 of them.
All this makes the operation different from all other terrorist operations before July 1, 2015, which were aimed at controlling land. 
Therefore, we can safely describe this operation as "collective suicide" not only an operation for controlling or deployment of elements. It is only aimed at claiming a moral and media victory for the terrorist organization. 

Source: MENA