From that same article above
"
Russia has relatively few troops to call on," says Phillips O'Brien, a professor of strategic studies at St Andrews University, "so BTGs are a way of creating a fighting unit with lots of punch.
"They're designed to attack quickly with lots of firepower. However, they have very little protection in terms of infantry personnel to escort them and to retaliate if the armoured column comes under attack," he says.
"
That makes the Russian army like a boxer who has a great right hook and a glass jaw
"
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