Not to bring politics into a HN discussion, but based on their recent outcome in Afghanistan, I'm not sure if the US military is an organization I would currently turn to for insight.
Military itself should seldom be judged by the decisions of the government. The entire mission in Afghanistan has long stopped being military oriented, and military was present to preserve some semblance of US control.
One could argue that there is sufficient proof now that US application of military in attempting to "democratize" nations has so far failed, but that should not come as a surprise since military is, by definition, not "democratic". Democracies deploy military exclusively to preserve peace (by discouraging invasion, for instance). This is still not a slight against US military, but against US foreign policy instead. Whether that makes it a net win in other (economic, geopolitical) measures for USA is another matter altogether.
As such, I do not think you should discount US military as a top-notch organization with a lot of know-how in building up expertise.
Most of these techniques are co-developed in industry applications, and are seeping out from military research into business. In tech, John Allspaw has done a huge amount to take these training methods and skill-extraction techniques and adopted/applied it to resilience engineering. (https://twitter.com/allspaw and https://www.adaptivecapacitylabs.com/)
Not paying attention to research with military provenance seems rather silly. What matters more are the questions: does this work? Where has it been tried? And can I apply it to my company or career?
One could argue that there is sufficient proof now that US application of military in attempting to "democratize" nations has so far failed, but that should not come as a surprise since military is, by definition, not "democratic". Democracies deploy military exclusively to preserve peace (by discouraging invasion, for instance). This is still not a slight against US military, but against US foreign policy instead. Whether that makes it a net win in other (economic, geopolitical) measures for USA is another matter altogether.
As such, I do not think you should discount US military as a top-notch organization with a lot of know-how in building up expertise.