The national flag of Moldova (Moldavia) is a tricolor of blue (haist), yellow (centre) and red (fly) (ie. from left to right). It also features the Moldavian coat-of-arms (eagle holding shield with image of an aurochs) to distinguish it from the Romanian tricolor that has the same colours.
Moldova was part of Romania until the Second World War and the Moldavian language is the same as Romanian, thus the similarity of flags.
Romanian flag for comparison
