FOR - Discussion
Yes, I agree. It is a great way of serving the country. Armies are the ones who defend their country, those who work to protect it. Protecting your country is a great job.. Even if you said "I am a country patriot - I love it dearly" , if you are asked to fight for your country in times of war.. then you would most probably said "oh hell, no". Then, what kind of love towards our country, is it?? If you love it.. then serve it.. to serve it protect and defend and fight for it.. The best way to do this is to join the army.
AGAINST - Discussion
No, never. There are plenty of other ways to serve the country... why become a army? Becoming a army needs hard training and brave oath for defending it. Why need all these, when there are much easier and better ways? Instead of just fighting, lets do it logically and economically. Suppose.. if you are a doctor or nurse.. imagine how many people's lives would you be saving.. If you become a political leader, you become the head of armies.. you can control them and do lots of other things for the nation.. you have the whole country in your power(but, ofcourse bad politicians ruin the country).. There are much easier ways. Now, lets also highlight one army's private problems. He can never quite go out of the cantonment.. always busy.. changing habitat.. less interaction with family and much more. So, no need to become a army.. if you do then, okay.. not extremely mandatory.