theres is only one strategy to win: airplanes+troops+drop in capital=win
its boring, lame and all sooo realistic (we all know the stories of tranport planes landing in enemy capitals to disembark troops FTW, right?)
Top players in Afterwind all have their own strategies, none of which is as simplistic as you described. Afterwind is all about adapting your playing style to the current conditions and opponents - you won't get very far if you cannot do that.
Thanks. :)