Below, I have linked two videos which can answer common questions about the 2nd Amendment, such as "Who are the militia?" as well as what is meant by the phrase "standing army", something the founding fathers were concerned about.

https://odysee.com/@woeih:e/True-Meaning---Purpose-Of-The-2nd-Amendment:8

https://odysee.com/@woeih:e/Mark-Passio-The-True-Meaning-Purpose-Of-The-2nd-Amendment-Part-2-Arms%2CNeeds-Cowardice-2018-06-26:3