欧盟正准备收紧对俄罗斯公民的签证规定，这些公民每年以旅游身份访问成员国的人数达数十万之多，这是欧盟加强防范混合威胁攻击更广泛努力的一部分。欧盟官员尚未透露具体将修改哪些规定或何时生效。
The European Union is preparing to tighten visa rules for Russian citizens, who visit member states as tourists by the hundreds of thousands each year, as part of a broader push to strengthen security against hybrid attacks. EU officials have not detailed which specific rules would change or when they would take effect.
此举紧随其后的是欧盟多个国家所关联的一系列事件，这些事件被认为与俄罗斯支持的破坏和虚假信息运动有关。
The move follows a string of incidents EU states have linked to Russian-backed sabotage and disinformation campaigns.