Army robots made of robots? New LEGO-like method could make it happen

https://www.armytimes.com/news/your-army/2021/01/30/army-robots-made-of-robots-new-lego-like-method-could-make-it-happen/

The method could give tiny robots the ability to reconfigure into different shapes for various missions.

https://peterholland765.wordpress.com/2021/02/02/army-robots-made-of-robots-new-lego-like-method-could-make-it-happen/