Smellvin
Klingons are the Americans, Romulans are the Russians, and the Federation is the People's Republic of China.

Rodents of Unusual Size
Klingons have evolved in several stages over time. They used to be Russia, but then became Russia, but with some Zulu and Aztec thrown in.

The Cardassians used to be the North Koreans, now they are postwar Germany/Japan. Romulans used to be Nazis but now they are more like North Korea. The Ferengi are the Jews but without the stigma.

Alternate evil Earth is basically now everybody's Mexico.

memedumpster
Timid Klingons always get stuck working in media. He'll die dishonored of heart disease.

Triggerbaby
THAT'S A TARG. GOD YOU ARE SO DUMB.