confused in game 801857

why was "yamaver85" kicked out of Game 8018517 for "breaking the rules?"
and how did Jcm5613 amass enough armies (without having a continent) to break through yamaver85's highly fortified South American holdings (12 on Sao Paulo) and north Africa (8) all in one turn?
and how did Jcm5613 amass enough armies (without having a continent) to break through yamaver85's highly fortified South American holdings (12 on Sao Paulo) and north Africa (8) all in one turn?