U.S. Secretary of State Mike Pompeo met Polish Prime Minister Mateusz Morawiecki in Warsaw on Saturday where they spoke about U.S.-Poland defense ties, including the Enhanced Defense Cooperation Agreement (EDCA).

Pompeo and Morawiecki also discussed the COVID-19 pandemic, securing 5G networks and a new bilateral agreement to cooperate in the development of Poland's civil nuclear power program, a State Department spokeswoman said.

Pompeo and Polish Defense Minister Mariusz Błaszczak later signed the EDCA.

The defense pact, agreed last month, will see the number of U.S. troops in Poland rise to at least 5,500. It will cost Poland around 500 million zlotys (134.79 million U.S. dollars) more per year.

The deal also involves the development of expertise for Polish forces in the areas of reconnaissance and command, with the possibility of more U.S. forces coming to Poland in case of an increased threat.

Poland's Defense Minister Mariusz Blaszczak was quoted by state news agency PAP as saying the country would be able to quickly increase the number of U.S. troops to 20,000 if needed.

Pompeo's visit to Warsaw comes after stops in the Czech Republic, Austria and Slovenia as part of a regional trip focused on cyber and energy security.

(With input from Reuters)