in october, the US did >$300M of trade with russia. looks like trade with NK is quite small, but non-zero as well ( https://www.census.gov/foreign-trade/balance

in october, the US did >$300M of trade with russia. looks like trade with NK is quite small, but non-zero as well ( https://www.census.gov/foreign-trade/balance/c5790.html https://www.census.gov/foreign-trade/balance/c5790.html ) i imagine its much larger for both if you include bitcoin transactions