By bloodshed, I mean death or casualties, not limited to only when blood pours out. When people talk about bloody wars, they also cite casualties which includes wounded. It's obviously incalculable, but consider these:
1. US gang violence. (8,900 deaths in 2010, higher in 80s,90s)
2. Drug war related deaths in Mexico 1990-2010 (220,000 deaths)
3. Drug war related deaths in Columbia, 1990-2010 (450,000 deaths)
4. Killings by militarized police. (unknown)
5. Overdose deaths (65K in 2016 at peak, but a lot in 70s-90s)
http://jpfo.org/articles-assd03/gun-stats-perspective.htmhttps://colombiareports.com/the-price-of-colombias-drug-war/
https://www.nytimes.com/interactive/2017/06/05/upshot/opioid...
I would guess that overdose deaths primarily occur because the user doesn't know what dosage they are given, a result of the black market. I suspect there are some intentional suicide overdose deaths, but those would be low. The overdose deaths are just for one year as are the gang violence deaths. Gangs arm themselves with drug money.
The US had 720,000 deaths in our bloodiest war, the Civil War, 2/3rds of that was disease, which you may or may not consider bloodshed. Just Mexico and Columbia alone account for 670K deaths between 1990 and 2010. Add 7 years to the top end, and 20 years from 1970 to 1990 and that number is growing substantially.
I'm not sure if you would count the Philippines as directly related to US policies, but I think their death count is already at 12K for the year.
Anyway, these are some numbers that I threw together in about 10 minutes. It excludes a bunch of countries that were directly affected by US drug war policies. The numbers are quite high. Not WWII total deaths high, but certainly Civil War military deaths high (our bloodiest war).