There isn't a canonical answer to that. Most fans assume he's alive. I recommend the webcomic "A Fistful of Arrows" It is non-canon but it's the best explanation I've seen. The link can be found in related links.
In the Dev Commentary/Playthrough they said that he also might have been killed protecting Hasley. I think we will have to wait for a "expansion" or something to really find out what happened.
no, Jun is... Jun... Master Chief's name is John...
Jun Kojima is 163 cm.
Jun Fujio's birth name is Fujio Jun.
fun fun (:
He doesn't he loves Jun but he said that he missed Jun and he likes her. Jun and Kazuya had a relationship in Tekken 2. The relationship resulted in the birth of Jin Kazama. In Tekken Tag, Kazuya fought Ogre in revenge for Jun because Ogre attacked Jun and it resulted in Jun's vanish. Jun is not declared dead but missing.
Chris Jun's birth name is Kyoung-Hoon Jun.
Choe Jun died in 1970.
Jun Lan has written: 'Xie jun lie qing xin'
Ed Jun Kim's birth name is Jun Kim.
Jun means truth in Chinese
Murai Jun was born in 1897.