Why did the silk roads split between anxi and kashgar?

The Silk Roads split between Anxi (modern-day Anxi County in China) and Kashgar due to geographical and logistical factors. Anxi served as a vital hub for trade routes leading into Central Asia, while Kashgar was strategically located at the crossroads of various routes, connecting China with the Middle East and beyond. This division allowed for more efficient trade by facilitating the exchange of goods, cultures, and ideas between diverse regions. Additionally, the differing political and economic conditions in these areas influenced trade patterns along the Silk Roads.