Canada, China, Germany have been developing invisibility cloaks, suits & shields.

The first Chinese military invisibility suit has become a subject of deep attention in the United States following its unveiling. This technological breakthrough has raised questions about potential implications for the geopolitical landscape. American military officials and analysts are actively discussing the potential strategic advantages that China may gain as a result of this new development.

https://www.youtube.com/watch?v=7irXfatBQrQ