World 2.1 map question

Can we attack from Levant to Egypt or is it blocked off by the Red Sea? I need to know because currently trying to keep Africa and want to block it off. Thanks!
Conquer Club, a free online multiplayer variation of a popular world domination board game.
http://www.tools.conquerclub.com/forum/
http://www.tools.conquerclub.com/forum/viewtopic.php?f=6&t=151414