I think, sir, that you are pinpointing one of the most fundamental questions when it comes to peacekeeping operations.
Actions in peacekeeping operations seek most of all to maintain peace, to bring peace rather than wage war. So the military's position and the objective of the operation have to be peaceful. This does not mean that we do not bring some weapons in order to be heard or even to defend ourselves when incidents happen—such as in Cyprus in 1974.
Consider that peace operations are different from war operations such as in Iraq, for example, where you have to bring all your materiel to face the enemy and the situation on the ground. This is why it will always be difficult for international organizations to adequately assess the options that they have in terms of military deployment on the ground.
Now, do not believe that we engage in peace operations with our eyes closed. There are preparatory missions in which we inspect the territory and measure the dangerousness of the actions of the parties on the ground. Then, they advise the United Nations or other organizations about the modalities of the military deployment on the ground. Usually, and I'm talking about the 120 peace operations launched over the past 20 years, peace operation missions arrive with the right materiel for the mission that they have.
Only exceptionally are there unforeseen shifts. Indeed, no one foresaw that the Turks would invade Cyprus in 1974 because there had been a coup in Athens that just toppled an administration that had itself toppled the government in Cyprus. You can see that this was an exceptional situation, and Turkish paratroopers arrived within a few days. Action was needed. Peace operations do not constantly unfold in situations like that.
In some places, there can be surprises but throughout the majority of peacekeeping operations, things in general happen the way they were supposed to be when the mission was planned.