WARSAW, Poland (AP) — Canada is sending more soldiers than initially planned to a military exercise in Eastern Europe, the country’s prime minister said Wednesday, in response to Russia’s recent actions in Ukraine.

Stephen Harper’s office said Canada plans to send 75 more soldiers to Latvia this month to participate in Saber Strike 2014, a U.S.-led exercise. Those are in addition to 45 Canadians who were already due to take part in the exercise in Poland.