As I listen to the song and read over the lyrics it makes me think that "Johnny" joined the army without knowing how long he'd be gone or what might happen to him but enlisting because the government generally glorifies the military. He served his 3 years and came back home injured and free from having to go back into war. But he wants to do the things he used to be able to do and going to war has ruined his life. Kinda makes him wish he never enlisted.
As I listen to the song and read over the lyrics it makes me think that "Johnny" joined the army without knowing how long he'd be gone or what might happen to him but enlisting because the government generally glorifies the military. He served his 3 years and came back home injured and free from having to go back into war. But he wants to do the things he used to be able to do and going to war has ruined his life. Kinda makes him wish he never enlisted.