You are wrong that an invasion always requires an “army” as you mean it; as a uniformed service of a foreign government. An army can also consist of millions of irregulars, and we certainly ARE dealing with an invasion of this sort.
Deny it all you want, it is still a fact; a reality that you deny at the risk of your own connection to reality.
An 'army' requires arms. Even irregulars are armed. Thus the word ARMy.
This is not an 'invasion', but a mass migration of foreign denizens.
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Deny it all you want, it is still a fact; a reality that you deny at the risk of your own connection to reality.
Perhaps your reality could withstand some scrutiny if you think unarmed citizens can constitute an 'army'.