A Closer look at the Frontline

The white arrow represents the Armenian trenches and the red arrow represents the Azerbaijani trenches. Take note of further dug outs and roads that lead back towards there respective area's. These are system of trenches and roads that lead to another set of trench systems with roads that link military bases. 

The above picture provides us with bird’s eye view of how close the trench systems of Armenia and Azerbaijan really are. The two trench systems above are a mere 500 meters away from each other, with the pin in-between depicting the demarcation line between Nagorno Karabagh and Azerbaijan. Although recent imagery provides us with information regarding trench systems and there development, thanks to Google earth history we can see continuous upgrades on front-line, as they interconnect to from a strong and typical defensive barrier. Both sides are continuously upgrading their front-lines.

Imagery analysis regarding light and heavy industry fabrication, ship dock repair yards, fighter jet maintenance buildings tend to be easier to identify. Although a trench is easily depicted on Google earth, rather identifying which trench belongs to which nation is of somewhat another issue. These two trench systems typically can present an analyzer with some issues. In this analysis further referencing with the demarcation line and roads leading back from each trench to its respective villages/bases concludes the opposing trenches. The last and most obvious giveaway is definitely the two head on trenches that directly face each other. Further elaborate and typical trench systems follow both sides of the demarcation line with military strongholds or bases within a frame work of both front-lines. 

Sources
-Image courtesy Google earth
-US Army Imagery analysis manual