You are expected to evaluate two chosen theories. The essay should be divided equally between two sections

You are expected to evaluate two chosen theories. The essay should be divided equally between two sections
1. A summary of the chosen two International Relation (IR) theories, including main strengthens and weaknesses.
2. Use the two theories to analyse and interpret a case study of your choosing.
You can follow a different structure, but doing these two things is the most straight forward path to passing the essay.
Theories are
Please use Liberalism and Realism
1. Liberalism theory
2. Realism
And apply to the case study below.
Case Study:

Please use US Invading Iraq in 2003as a case study.

References:

Please use at least 10 Academic references.