article_snippet.sent: At two kilometres in circumference and protected by an imposing 12-metre wall, the Ming Dynasty's 'Martial City' had a reputation that struck fear into opposing armies.
article_snippet.sent: So much so that battle plans would be drawn up to specifically give the castle at Zhangjiakou, in China's northern Hebei province, a wide berth.
article_snippet.sent: Workers restore the southern barbican entrance to Wanquan Castle, which was known as the Ming Dynasty's 'Martial City' The fortress was built in 1393 and managed to repel all attacks by Mongolian armies .
article_snippet.sent: the fortress' measures some two kilometres in circumference and was protected by an imposing 12-metre wall .
article_snippet.sent: The castle in Wanquan county - known in China as a 'living fossil of the Ming military system' - was built in 1393 but is relatively well-preserved, especially the interior city area which includes the residences of generals and wealthy merchants.
article_snippet.sent: The fortress has huge historical, cultural and military significance and has key cultural relic status in China.
highlights_snippet.sent: Fortress was built in 1393 and successfully repelled every attack that invading Mongolian armies threw at Fortress .
  
highlights_snippet.sent: the Wanquan Castle has huge historical, cultural and military significance and has key cultural relic status for Chinese people .