https://sobesednik.ru/politika/20181224-svadebnyj-kancler
https://www.inopressa.ru/article/25Dec2018/newsweek/attack.html
https://www.ostro.org/general/society/articles/560846/
https://www.radiosvoboda.org/a/donbas-rosija-intehracija/29675871.html
http://www.rosbalt.ru/world/2018/12/25/1755291.html
https://www.gazeta.ru/politics/2018/12/25_a_12107827.shtml
https://lb.ua/world/2018/12/25/415544_frantsiya_podlival_kerosin.html
Regional experts also predicted that Russia may look to take advantage of the uncertainty created by James Mattis's resignation as President Trump's defense secretary.
https://www.newsweek.com/ukraine-russia-war-attack-christmas-1270621