Look, multinational forces and coalitions of the willing are probably the best way to go if you're going into a situation where you want to proactively kill people. You see that in a counterterrorism situation or a situation such as Somalia. It tends to make sense to get together coalitions of countries that are willing to take the risk of high intensity operations and aggressive operations. I think that most UN officials would say that when you're going on the offensive militarily, that is not a job for blue helmets; that is a job for coalitions of the type you describe. In Mali we see the G5 countries setting up a coalition to more proactively pursue jihadis alongside MINUSMA.
Where I think the UN has an advantage is in, as I say, running multi-dimensional robust missions over time, which may use force and may indeed sometimes have to go tactically on the offensive, but have an overall strategic goal of peace-building. That's where I think the blue helmets have an advantage.