Nested unordered lists in LaTeX

The bullet styles of nested unordered lists are a black circle, hyphen, asterisk and dot.

\begin{itemize}
  \item Canada
  \item US
  \begin{itemize}
    \item Arizona
    \item California
    \begin{itemize}
      \item Alameda
      \item Los Angeles
      \begin{itemize}
        \item Long Beach
        \item Sacramento
      \end{itemize}
    \end{itemize}
  \end{itemize}
\end{itemize}