Using what you have learned from these websites, how would you advise Genghis Khan in his quest to invade China? (Write a short paragraph - 5 to 7 sentences - with you recommendation. Include your reasons for your recommendation.)

If I were to advise Genghis Khan in his quest to invade China, I would recommend utilizing a multi-pronged strategy that leverages the Mongol's superior mobility and reconnaissance abilities. Firstly, considering the formidable defensive structures like the Great Wall, I'd suggest avoiding direct assaults upon the most fortified areas. Instead, focus on exploiting weak points and utilizing the Mongols' adept siege tactics to undermine key positions. Establishing alliances with disgruntled Chinese factions, such as the Western Xia, could provide inside information and additional forces. As intelligence and deception play crucial roles in warfare, employing spies to gather information and spread misinformation would help disorient and fragment Chinese defenses. Additionally, it's important to ensure the Mongolian army adapts to the new terrain and potentially incorporate Chinese weapons and engineering knowledge to overcome the technological advances of the Song Dynasty. Lastly, maintaining the mobility of the Mongolian cavalry and implementing a scorched earth policy would hinder enemy supply lines, exacerbate the logistical challenges of the defending army, and weaken resistance from local populations, paving the way for a successful invasion.