http://mwi.usma.edu/russian-ukrainian-war-understanding-dust-clouds-battlefield/

Amos C. Fox | January 17, 2017 | Commentary & Analysis
“Russian aggression in Ukraine has been interpreted as the harbinger of a new era of warfare, one in which cyber threats, hybrid tactics, and gray-zone operations are ascendant. But there are lessons to be learned in the conventional character of the conflict, to which too little attention is paid.”

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“Preparing to combat Russian cyber threats or hybrid tactics is important. But the lesson from Ukraine is clear: It is equally vital to train and equip US forces to counter the type of conventional capabilities Russia has demonstrated in Ukraine.”