Yes, Darth Revan did fight against Darth Nihilus. In the video game "Star Wars: Knights of the Old Republic II - The Sith Lords," Revan and Nihilus are both prominent characters. They come into conflict as part of the game's storyline, with Revan ultimately facing off against Nihilus in a climactic battle. Their confrontation is a significant moment in the game's narrative and adds to the lore of the Star Wars universe. **

Revan's midi-chlorian count is not explicitly stated in the Star Wars canon. Midi-chlorians are microscopic organisms that exist within the cells of all living beings and are used to measure an individual's connection to the Force. While Revan's midi-chlorian count is not known, he was a highly skilled and powerful Force user, demonstrating exceptional abilities in both the light and dark sides of the Force. His strength in the Force was evident in his ability to influence others and his skill in lightsaber combat. **

Revan's alignment as a Sith or Jedi is a matter of interpretation, as he was a complex and morally ambiguous character. As a Sith, Revan was a powerful and ambitious leader who sought to conquer the galaxy, but he also had a sense of honor and a desire to protect the galaxy from greater threats. As a Jedi, Revan sought redemption and worked to bring balance to the Force, but his methods were often controversial and morally gray. Ultimately, whether Revan was a "good" Sith-Jedi depends on one's perspective and interpretation of his actions and motivations. **

Yes, there is a book that continues the story of Darth Revan. The novel "Star Wars: The Old Republic - Revan" by Drew Karpyshyn follows the character of Revan after the events of the video game "Star Wars: Knights of the Old Republic." In the book, Revan embarks on a new journey to confront a powerful Sith threat and uncover his own forgotten past. The novel delves deeper into Revan's character and explores his struggles with the light and dark sides of the Force. **

The caricature of the summit conference in Helsinki shows the leaders of the United States and Russia, Donald Trump and Vladimir Putin, sitting at a table with Trump holding a puppet string attached to Putin. This caricature is a satirical representation of the perception that Trump is under the control or influence of Putin, suggesting that Putin is pulling the strings and manipulating Trump. The image reflects the controversy and speculation surrounding the relationship between the two leaders and the potential influence of Russia on the United States. **

A symposium is a formal gathering or meeting where experts in a particular field come together to discuss and exchange ideas on a specific topic. It is often organized as a series of presentations, panel discussions, and Q&A sessions, allowing participants to share their knowledge and insights with each other. Symposia are commonly held in academic and professional settings, providing a platform for networking, collaboration, and learning within a specific discipline or industry. **

"Der Kongress tanzt" is a German phrase that translates to "The Congress Dances" in English. The phrase originated from the Congress of Vienna in 1814-1815, where European diplomats and leaders gathered to reorganize Europe after the Napoleonic Wars. The phrase is a metaphor for the diplomatic and political maneuvering that took place during the Congress, likening it to a dance where participants carefully navigated their relationships and alliances. It reflects the complex and intricate nature of international diplomacy and negotiations during this historic event. **

I think the most powerful Sith of all time in the Star Wars universe is a matter of personal interpretation. However, Darth Revan, Exar Kun, and Lord Vitiate are certainly strong contenders. Darth Revan was a skilled strategist and powerful Force user, while Exar Kun was known for his mastery of Sith magic and manipulation. Lord Vitiate, also known as Emperor Valkorion, was incredibly long-lived and had the ability to consume entire planets with the Force. Each of these Sith Lords left a significant impact on the galaxy and their power is undeniable. **