Which of the following countries has a flag similar to that of Romania's?

The national flag of Romania is a tricolour. The Constitution of Romania states that "The flag of Romania is tricolour; the colours are arranged vertically in the following order from the flagpole: blue, yellow, red". The flag has a width-length ratio of 2:3; the proportions, shades of colour as well as the flag protocol were established by law in 1994, and extended in 2001.

Today there is no official interpretation of those colours other than these historical associations. The revolutions that swept Europe in 1848 first produced the modern Romanian tricolour, blue-yellow-red, although it had horizontal stripes and the inscription “Justice” in Walachian and “Brotherhood” in Moldavian in the centre. This flag was used only briefly, but it became the basis for the modern tricolour.

The African nation of Chad has its very similar flag and it takes a keen eye to spot the difference between the two. The flags of the two countries are tricolors made up of three stripes of different colors made up of blue, yellow and red colors. The only differences between the two flags are in the shades of the three colors, as well as the width-length ratio which is set at 1:2 on the Romanian flag and 2:3 on the Chadian flag.

In 2004, Chad asked the United Nations to examine the issue; however, Ion Iliescu, the President of Romania, announced no change would occur to the flag, as the existence of Romania's tricolour predates the existence of Chad as a whole.