Dhaka, Sept. 13 -- Poland rejected on Friday a suggestion by Donald Trump that Russian drone incursions into its airspace could have been a mistake, a rare contradiction of the U.S. president from one of Washington's closest European allies.Poland, backed by aircraft from other NATO, shot down drones that had violated its airspace on Wednesday, the first time a member of the Western military alliance is known to have fired during Russia's war in Ukraine.Russia said its forces had been attacking Ukraine at the time and that it had not intended to hit any targets in Poland. Trump told reporters in Washington on Thursday: "It could have been a mistake."But Polish Prime Minister Donald Tusk responded on X: "We would also wish that the drone a...