From ARVIC, original post here, with supplementary info from priyom.org.

Over-The-Horizon radar from China is often heard in IARU Region 3 on the 20m, 40m and 80m bands.  These are affecting large parts of Australia and can be heard too on the west of the United States.

The IARU Region 1 newsletter also reports that long lasting carriers are on 14000 kHz and 21000 kHz, with them being observed coming from South China.

Russian military traffic including radar is on 40m.  The Russian “Buzzer” is also on 6998 kHz, close to 40m.  Radio Tajikistan has a troublesome third harmonic audible on 14295.174 kHz.

Among other long term intruders, the Russian taxi service in Moscow is on 28 MHz, and the Spanish fishery the top end of the 15m band.  The IARU Region 1 Monitoring System newsletter is here.