Add list of states / cities at customer address

[osamaboshi]

I want to add (state --> state.list) and (city --> city.list) at customer addresses page.

customer must mandetory fill country(select from list) /state (select from list of states related to country) /city (select from list of cities related to state) .

Can please help me to do that

[osamaboshi]

Can please send the liquid syntax code 

[osamaboshi]

Anyone can help to solve this