The continent that has the most existing desert is actually Antartica. <span>Scientists that work in </span>Antarctica<span> mostly refer to the majority of the continent as being cold</span>desert<span> or polar </span>desert<span>.</span>
Yours blanks will be filled as followed,
1st Blank - Hannibal
2nd Blank - army
3rd Blank - war
4th Blank - Alps
I feel like I didn't do my part