the US Navy offers a self-paced Morse course:

https://www.navy.mil/Press-Office/News-Stories/Article/2260395/morse-code-a-staple-in-the-navy-iw-toolkit/

This Morse article appeared in the Navy Times magazine in 2019:

https://www.navytimes.com/news/your-navy/2019/05/21/simply-elegant-morse-code-marks-175-years-and-counting/

73,

Jeff KH6O