We publish a dataset of raw tweets collected via the Twitter Streaming API in the context of the onset of the war, which Russia started in Ukraine on February 24, 2022. In total, we gathered 8.7 million original tweets between February 17 and March 3, 2022, produced by 2.3 million individual user accounts. We collected the data using Twitter's streaming API (represents 1% of the total traffic on Twitter) and filtered for all English Tweets containing at least one of the hashtags #ukraine, #russia, and #conflict. In addition, the data has been annotated with availability tags, resulting from rehydration attempts at two points in time: directly after data acquisition and shortly before manuscript submission. This may provide information on Twitter moderation policies. We share only the Tweet IDs with the corresponding availability information in this repository.

Probability Sample - Simple random Sample