Actor Yoo Gun (28), who previously headlined for giving up his U.S. citizenship, enlisted in the army as an active duty soldier on March 2nd. Through an interview with Newsen, he revealed, "I'd like to apologize for enlisting so late. As opposed to feeling scared, I actually feel lighthearted about my enlistment. A lot of my friends have already served, and actor On Ju Wan, who was recently discharged, gave me a lot of realistic advice." When asked about the attention he received for giving up his U.S. citizenship, he replied, "That's old news, I gave it up years ago, and it's not because I wanted to enlist. I gave it up because it was troublesome having to travel back and forth between Korea and the U.S. while working on my acting career. Serving in the army is the duty of every man, so I've always thought of it as something definite." Actor On Ju Wan accompanied Yoo Gun during his enlistment process, and even drove him to his training camp.  "On Ju Wan is a college friend. We also appeared in the movie 'My Mighty Princess' together. When Ju Wan was enlisting, we spent the night together and he promised me that he'd accompany me to my enlistment." When asked whether he would be applying for a position as an entertainment soldier, he replied, "I don't have any plans to. I just want to serve normally with the rest. Since I'm enlisting quite late, I'm planning to just listen to orders from those younger than me and adjust well. I want to make sure that my age doesn't make anyone uncomfortable." The reporters asked the star if he had a girlfriend who would visit him. Yoo Gun replied, "We all gathered to eat breakfast together, and it was a room full of 11 men. It was really sad (laughter)." Yoo Gun concluded, "Two years is as long as it is short, so I'll be healthy while serving. Please wait for me to return." Source: Newsen via Nate