It looks like he got the "biggest standing army" from Active military + Reserve military + Paramilitary. Just sort descending by the "Total" column: http://en.wikipedia.org/wiki/List_of_countries_by_number_of_...
"Human Wave" [1] Tactics didn't work very effectively in the Korean war, they would work even less in a modern combat theater.
The Chinese were quite successful in the Korean war. But yeah I do not think those tactics would work today.