By CLAUDIA CIOBANU, Associated Press

WARSAW, Poland (AP) — Polish Prime Minister Donald Tusk pledged Thursday to push ahead with a “great modernization program” for his country’s military, a day after Russian drones crossed into Poland and amplified international tensions around Russia’s invasion of Ukraine , including what the Kremlin’s future territorial ambitions might be.

European officials described Wednesday’s incursion, which occurred during a wave of recent unrelenting Russian strikes on Ukraine , as a deliberate provocation, forcing the NATO alliance to confront a potential threat in its airspace for the first time.

It deepened longstanding fears that the three-year war between Poland’s neighbors could precipitate a wider conflict. U.S.-led efforts to steer Moscow and K

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