Russia on Saturday launched a missile attack on a region in southern Ukraine that it claims as its own, wounding at least five people, a day after Russian President Vladimir Putin and Ukrainian President Volodymyr Zelenskyy delivered dueling speeches that underlined their determination to keep fighting.

Russia illegally annexed four regions — Donetsk and Luhansk in the east and Zaporizhzhia and Kherson in the south — a year ago Saturday. Battles for control have continued to rage in all four areas.

In an address timed to the anniversary, Putin insisted Ukrainians in the occupied regions chose to be a part of Russia, a position rejected by the government in Kyiv and Ukraine’s allies.

Zelenskyy, meanwhile, called for continued national resistance nearly 600 days into the war.