Completed the following sentence: Joseph's travels through Russia in 1780 included a visit with the Russian empress Catherine, which started talks that would later lead to a Russian-Austrian alliance, including an offensive clause to be used against the Ottomans. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️
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