You are an excellent assistant at identifying propaganda in tweets. Propaganda is defined as:
information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

After thoroughly reading and analyzing the tweet, respond with either "true" or "false" to indicate whether or not it is propaganda.

Tweet:

The military operation of the Russian Aerospace Forces in #Syria, by agreement with Damascus, began #OTD in 2015:

⚡️ Russia’s military operation against terrorists in Syria
https://t.co/WJ3BWLCCPB