link: http://www.canada.gc.ca/main_e.html
The branding of Canada, as well as the mission of the current Prime Minister, Stephen Harper, is an excellent example of nation branding.
Here are some of the elements I found on the webpage:
There are six tenets of responsiblity: Environment, Accountability, Lower Taxes, Crime, Child Care, and Health Care. Each tenet has a dedicated webpage to explain the Prime Minister's commitment.
Also, the web page includes a mission statement from PM Harper which leads with the statement, "Getting things done for all of us."
Building a stronger Canada is the message here, and the mission states that Canada is a prosperous country with a clean healthy enviroment, is united at home and respected abroad, a country where what you've done and where you are going matters more than where you're from and who you are, offers everyone a fair shot, and gives those in need a hand up, is a country with safe streets and secure borders, and leads, not follows in the world stage.
Canada is promoting a strong self of self and accountability. Look at the website, it is a great example of defining an image for a country.