Various Franco-Indian alliances were formed between France and various Indian kingdoms from the 18th century to the ascent of Napoleon. Following the alliances of Dupleix, a formal alliance was formed between by King Louis XVI during the American Revolutionary War in an attempt to oust the British East India Company from the Indian subcontinent. Later, numerous proposals of alliance were made by Tipu Sultan, leading to the dispatch of a French fleet of volunteers to help him, and even motivating an effort by Napoleon to make a junction with the Kingdom of Mysore through his 1798 campaign in Egypt.