The progress is glacial, sometimes thwarted for the most exasperating reasons. I found some of the comments really interesting.
https://breakingdefense.com/2018/04/armys-big-six-ride-into-the-valley-of-death/?utm_source=hs_email&utm_medium=email&utm_content=61811102&_hsenc=p2ANqtz-_ocajTBrxO0E6B58mBLNc6-0YQBZJxpnVKn_vXuQ4UAPpuIAao3n2tVCYuDGfb36nAErjPLFYSmzcmLjwt41ZfJkj7Dg&_hsmi=61811102
It's best if you post a short paragraph from the article that best summarises, not everyone has the time to stop and read entire articles