The documents contained secret US and NATO plans to strengthen the Ukrainian army, according to Washington, it was only a Russian disinformation campaign.

According to senior Biden administration officials, classified war documents were posted on Twitter and Telegram this week detailing them.

secret US and NATO plans to strengthen the Ukrainian military ahead of a planned offensive against Russia.

The Pentagon is investigating who may have been behind the leak of the documents, which appeared on Twitter and the Telegram platform, which is widely available in Russia and has more than half a billion users.

According to military analysts, the documents appear to have been altered in some details from the originals, overestimating the number of Ukrainian war dead and underestimating the number of fallen Russian soldiers.

According to analysts, the amendments may point to Moscow's disinformation efforts. The documents also reveal the expected weapons deliveries, the number of troops and battalions. Meanwhile, Biden's officials stated that they were working on erasing the documents, but as the New York Times wrote in its article, they were not successful until Thursday evening.

The documents do not include specific war plans, such as how, when and where Ukraine intends to launch the offensive, and are not so recent as they are five weeks old.
Analysts cited by the New York Times said it was unclear how the documents were leaked, but they were shared and circulated by pro-Russian channels.

"Whether these documents are authentic or not, people should be wary of anything they publish from Russian sources."

- said Michael Kofman, director of Russian studies at the CNA research institute.

Still, analysts say some of the documents appear to be authentic and could provide valuable information for Russia, such as the timetable for the delivery of weapons and troops, the number of Ukrainian troops and other military details.

Featured image: MTI/AP/Patrick Semansky

The New York Times