Sent_en: 2zh The Caucasus region of Russia has seen an increase in attacks recently, following a few years of relative calm after two wars with separatists in the neigbouring region of Chechnya.
Sent_yy: 俄罗斯高加索地区最近的袭击事件有所增加，此前在车臣邻近地区发生两场与分离主义分子的战争后，经历了几年的相对平静。