[tyre]

This is not a world war. The fighting is specific to a single area.

The Vietnam War involved at least double the number of involved countries and wasn’t considered a world war.

[djxfade]

World War II also started with fighting in a specific single are, until suddenly it wasn't in a single area anymore...

[6gvONxR4sf7o]

But what about the denominator. All the wars that started in single areas and ended in them too.

[CRConrad]

Crimea was the Sudetenland; Ukraine is Poland.

[dragonwriter]

> This is not a world war. The fighting is specific to a single area.

That was true of WWII, until it wasn't.

[kingofpandora]

And it's not true of this war until it is.

[gerikson]

Germany invaded Poland on 29 Aug 1939, and France and Great Britain declared war on Germany on 3 Sep 1939.

If a major power declares war on Russia on Monday, we're in World War III.