User talk:129.45.62.166

Recent edit to S-400 missile system
Hello, and welcome to Wikipedia. I noticed that you removed some content from S-400 missile system without explaining why. In the future, it would be helpful to others if you described your changes to Wikipedia with an accurate edit summary. If this was a mistake, don't worry; I restored the removed content. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you! Materialscientist (talk) 12:50, 15 August 2019 (UTC)