There are several things wrong with this series, and I need to address them point by point.
1. Do not expect to learn anything about the military. All the characters there merely exist to fall in love, so it could very well be labelled as a romance. The girls are giggly and physically unfit, clearly not army material. As a woman, this is quite disappointing because women in this series are portrayed as individuals who will never be as good as the men in the army and serve as token recruits.
2. This is very Americanised, lacking any Serbian authenticity (if you want so something remotely close to the Serbian army life, checkout Bolji Zivot - Boba doing military service). From the whistling theme tune (which was the anthem of American soldiers in Vietnam) to character dialogues, everything was clearly ripped of from some American series like JAG and simply looks awkward in Serbia's setting. In the first episode, one female plays American football. I would understand maybe basketball, an American sport popular in Serbia, but this isn't popular anywhere outside the USA! The next point would shed light on why this irritating Americanisation exists.
3. Since required military service has become non-existent recently in Serbia, the government (Democratska Stranka in particular, that is fond of adopting Western values) has been trying to encourage people to join the army. What is particularly disgusting in the series is that these recruits will assist NATO operations - yep, the very NATO that bombed the country in 1999 and pressured it with embargoes. Shame on the creators of the series for trying to make Serbs forget the past - we would never see Americans cooperate with Al-Quaeda since 9/11 happened will we? Overall I gave this 3/10, merely because it loosely holds my attention so I wonder what happens next.