US President Donald Trump has once again expressed his disappointment with his Russian counterpart, Vladimir Putin, regarding military operations in Ukraine.

Trump’s respective speech at the US-Saudi Investment Forum in Washington was broadcast on YouTube.

The US president said that he has resolved eight wars, but one remains.

“I thought that was going to be my easy one because I have a good relationship with President Putin. But I'm a little disappointed in President Putin right now. He knows that,” Trump said, in particular.

But this is not the first time the US president has expressed disappointment with his Russian counterpart. In September, Trump made similar statements at least five times.