Through a slit in a stone bunker, soldiers from the Nagorno-Karabakh republic can see their Azeri foes just 150 metres away. In these mountains between two former Soviet republics, there are echoes of Ukraine. This summer was "more tense than before", says an officer at the front of this long-simmering conflict. Nagorno-Karabakh is run by ethnic Armenians but is legally part of Azerbaijan. Secession in 1988 led to a war that killed some 30,000 people. A shaky ceasefire ensued in 1994, with Azerbaijan losing 14% of its territory. Exchanges of fire along the front have long been common, but the clashes this year have been the worst since 1994. Commando raids became frequent, adding to the usual sniper fire. And the action has spread to the Armenia-Azerbaijan border, where civilians have become targets. Each side blames the other. Heavy Azeri losses at the start of August provoked bellicose rhetoric from the president, Ilham Aliyev. "The war is not over," he declared. "Only the first stage of it is."
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