while its a risk game, using a risk strategy on level3 onwards doesn't help. getting north America will quickly gain you 7 units a turn, which can be very dangerous for others to defend in the early period. on the other hand, although you can get a island, you'll soon get out numbered......
what actually happened contridict to what it says in the training. the enemies won't see people behind them. complete lies. they can see the spy once she's in the circle. and that's independant of walls between and behind an enemy.....