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...
The homeland's engaged with a 
brigade-class BETA force, too.
.الموطن الأمّ مشتبك مع قوّات بيتا من فئة لواء أيضًا
Impossible.
Ils ont trop à faire de leur côté.
L'esercito è già impegnato
 contro un BETA di Classe Brigata.
A força principal está enfrentando BETAs de
classe Brigada. Não tem nada para enviar.
Другие войска также ведут бой с БЕТА.
Они не смогут до нас добраться.