During WWII, George C. Marshall served as chief of staff of the US army from September 1, 1939 until November 18, 1945.
During his tenure he helped train US soldiers in modern warfare as an instructor at the Army War College in Pennsylvania.
He inherited an outdated and poorly equiped army, so he was also responsible for the modernization of the army and co-ordinated a large scale expansion of the military.
While Marshal wrote the document that would become the central strategy for Allied operations in Europe, Dwight Eisenhower would become the Supreme Commander of Operation Overlord.
Some ways of getting involved are:
-voting (here for the experience, ask yourself if you have the right to vote? does your family vote? your friends?
-participating in political campaigns (do you know anyway that participated in a campaign? You can also do it unofficially, for example even by posting Facebook posts about a candidate!)
-belonging to a party - do you know anyone in a political party?
The question asks about your personal experience so I can only give you tips how to answer this about yourself!
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After the Mongols defeated the Delhi Sultanate in India during the 16th century, the Islamic religion advanced into Central Asia.
I hope this helps! Have a nice day! :)