This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

The People's Democratic Republic of Yemen was once an existing country.

The Lao People's Democratic Republic is located in Southeast Asia.

She was diagnosed with Alice in Wonderland syndrome.

The Socialist Republic of Vietnam is located in Southeast Asia.

My friend came from the People's Democratic Republic of Algeria.

The Federal Democratic Republic of Ethiopia is a country on the African continent.

The Sahrawi Arab Democratic Republic is located in the northwest of Africa.

The Republic of Macedonia, formerly part of Yugoslavia, is located on the Balkan Peninsula.

The Islamic State of Iraq and the Levant (ISIL) is a terrorist organization with significant influence in the Middle East.