On April 19th, 1973, a race of extra-terrestrial lifeforms launched a landing unit from the moon, which touched down on Earth, in central Asia. Ever since, mankind has been engaged in a losing war against this alien species, known as the BETA, as they have gradually expanded outwards across the globe. After 20 years of non-stop fighting, the war has reached the shores of Japan...
Alpha Squadron has successfully suppressed 
the area around the defensive wall.
.نجح سرب ألفا في صدّ الهجوم في المنطقة المحيطة بحائط الدفاع
Die A-Staffel hat das Gebiet um den
Verteidigungswall erfolgreich gesäubert!
El escuadrón Alfa tiene el muro
bajo control.
El escuadrón Alfa tiene el muro
bajo control.
La compagnie A a nettoyé
la ligne de défense.
La Compagnia Alfa ha liberato con successo
 l'area intorno alle mura difensive.
O Esquadrão Alfa liberou
a área ao redor da muralha.
Эскадрилья А уничтожила 
противника возле укреплений.