ok, so I had a similar topic on China, and what I did was this:
First I thought about 2-3 different national interests, for example, territorial integrity and economic development.
Then I discussed how China has been successful in achieving the interest and then contrasted this with how they haven't been so successful. For instance, first I would talk about how China has been able to keep a relatively tight grip over Tibet and Taiwan. But then, to contrast to this, I wrote about how sometimes China's actions have actually acted as a detriment in some aspects, by alienating Taiwan and Tibet, eg the 2008 Tibetan riots.
Another option is to focus on the powers themselves, and link that to a national interest, so millitary powerh has been used in Tibet with relative success, but it has a negative impact on the peaceful rise goal.
As long as you acknowledge differing views then you should be fine.