The United States will set a permanent military presence in Poland, the Polish Defense Ministry said.

On June 12 last year, US President Donald Trump agreed to send 1,000 more troops to his NATO ally. But talks on details of where the troops would be deployed and how much Poland would pay dragged on for years, Reuters reported.

There is currently more than 4,000 US military personnel in Poland. The permanent presence, which will now count at least 5,500 troops is likely to cost Poland more.

The deal also includes enhancing the experience of Polish troops in the areas of intelligence and command, with the possibility of increasing the number of American troops in Poland in the event of an increased threat, the statement said.

The financial details of the new deal were not disclosed.