Hi I'm applying for a military career and need to know for interview purposes the most important current affairs of the past few years and I'm not quite sure on the whole iraq thing, how it started? And afghanistan?

2003 invasion of Iraq - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/2003_invasion_of_Iraq)

Try this for starters. You can Google lots of info on this subject.
Hope this helps out some

reviewjournal -- News: Operation Iraqi Freedom (http://www.reviewjournal.com/news/iraq/)

Also check this one out