I thought about joining the Army a military force that fights strictly on land. 
That's a good idea. What do they do?
Well armies played a major role in the 2003 invasion of Iraq which was call Operation Iraqi Freedom.
2003? That's pretty recent, what was the outcome of said operation?
It was a really long was that started in 2003 and lasted until 2011. 
Wow, that is quite some time, Was the overall outcome good for america? 
It really depends on who you ask. Some people think we won because we overthrew their bad leader, but other say it was bad because we spent so much money.
Oh, how much did we spend?
I'm not really sure but I know we spent several billion dollars.
Interesting, and what was bad about their leader?