The past year has seen a marked increase in the number of long-range Russian bombers that have approached European airspace near Britain, the Baltics or Scandinavia and have been escorted out of the area.
Lt Gen Stephen Wilson said US forces in the area are following accepted safety practices to make sure that accidents are avoided but Russian bombers do not take basic safety measures to prevent dangers to commercial air travel.
Wilson said so far Russian bombers have stopped short of crossing into European airspace but said the practice brings "unannounced" Russian bombers into international airspace heavily used by commercial pilots who depend on air traffic control guidance.
"We would not do that," he said. "It puts people at risk."
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The Russian bomber runs have not caused any accidents. But a civilian plane was shot down last summer over eastern Ukraine, killing all 298 people aboard. Ukraine and the West suspect it was destroyed by a Russian surface-to-air missile fired by Russian soldiers or Russia-backed separatist rebels fighting in the area. Russia denies that and has suggested it was a Ukrainian missile.
"Russia is using disinformation and misinformation and skillfully manipulating the media," he said.