Armenian officers escort the U.S., Russian, and French co-chairs of the OSCE Minsk Group on the Line of Contact northeast of Karabakh, Oct 27 2015. (RFE/RL) – A team of U.S., Russian and French mediators reportedly came under fire on Tuesday as it crossed into Azerbaijani-controlled territory from Nagorno Karabakh through a “line of contact” that has seen growing ceasefire violations in recent years. The three co-chairs of the OSCE Minsk Group crossed the heavily fortified fr