the sky went black / and then it rained:

Tomorrow the United States will formally submit its notification of its decision to withdraw from the Open Skies Treaty. After careful consideration, including input from Allies and key partners, it has become abundantly clear that it is no longer in the United States’ best interest to remain a party to this Treaty when Russia does not uphold its commitments. U.S. obligations under the Treaty will effectively end in six months.

https://www.defense.gov/Newsroom/Releases/Release/Article/2195239/dod-statement-on-open-skies-treaty-withdrawal/