How did the Mongols use siege weapons and the pony express to their advantage?

Explanation:

Siege weapons helped them go over obstacles. A pony expressed helped them deliver oral messages.

depending on what kind of map for example a pltical maps works in many ways this iss how it works it shows the areas and places the democratics and the repbulcicans reside for example if   texas chooses trump for president there a republican state and if   califronia chooses hillary there a democratic state.