ILL GIVE BRAINLIEST Why did the Mongols repeatedly fail to conquer the Sung dynasty before Kublai Khan's conquest?
The Sung army had trebuchets.
The Sung army had a blockade.
The Sung army had battering rams.
The Sung army had greater numbers,

The Sung army had a blockade

Explanation:

However, the Song dynasty was difficult to conquer because of the strategic location of Xiangyang, which became a vital position for Kublai to capture and hold. The city guarded the waterways of South China because the Han River was a major tributary into the Yangtze River.

the Sung army had trebuchets

Explanation:

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the cell goes through mitosis

explanation:

c) troops march forward in close formation against newer, more accurate weapons