de Russen zijn in het land

Etymology
lit. 'the Russians are in the country', i.e. the Soviets have invaded (the phrase dates to the second half of the 20th century). The reference is to the red color common to both menstrual blood and to socialism/communism; thus the association with Soviet Russians (the "reds").

Usage notes

 * The verb may inflect based on tense, and word order may vary based on usage in a main or subordinate clause; e.g.: Hij zei dat de Russen in het land waren.