Compulsory voting
Compulsory voting is increasingly resented by citizens in some countries such as Brazil, the largest country where compulsory voting is enforced: at the last presidential election in 2014, some 30 million voters, about 21% of registered voters, did not vote, despite the fact that Brazil has some of the most severe penalties enforced against non voters.
Voting in Guam
The Uniformed and Overseas Citizens Absentee Voting Act (UOCAVA) is a United States federal law dealing with elections and voting rights for United States citizens residing overseas. The act requires that all U.S. states, the District of Columbia, Puerto Rico, Guam, American Samoa, and the U.S. Virgin Islands allow certain U.S. citizens to register to vote and to vote by absentee ballot in federal elections. The act is Public Law 99-410 and was signed into law by President Ronald Reagan on August 28, 1986.