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...
A brigade-sized advance force of BETA 
is approaching the first alert line.
.قوّات بيتا بحجم لواء تقترب من خطّ الإنذار الأوّل
Ein Voraustrupp der BETA in Brigadegröße
nähert sich der ersten Alarmlinie.
Una brigada de BETA se acerca
a la primera línea de alerta.
Una brigada de BETA se acerca
a la primera línea de alerta.
Des éclaireurs BETA ont passé
la première ligne DEW !
Una brigata di avanscoperta BETA
 si sta avvicinando alla prima linea di allerta.
Uma força BETA do tamanho de uma brigada
se aproxima da primeira linha de alerta.
Приближаются силы БЕТА! 
Первая линия обороны преодолена!