cons:

-It's a commitment that once agreed to cannot be broken without serious consequences.
-Once you are in the service, you have no real freedom.
-Many decisions are made for you without your input.
-There is the possibility that you could make the supreme sacrifice for your country.
-You have no real privacy, especially in the beginning.
-The military decides your clothing and your hair style.
-There is the possibility that you might be called upon to kill someone or cause someone's death.
-Nothing familiar at all.
-Tedius.
-Frightening.
-It changes you.
-You have to witness the deaths of many innocent.
-No understanding. Do or die.
-Leaving everything.
-Unknown territory.
-It just sucks. Trust me.

pros:
-None.

Leave the military for someone else to join.