The flag with a yellow, yoke-shaped pall is Vanuatu.
Vanuatu’s national flag was adopted in 1980, when the New Hebrides became independent. Its design developed from the flag of the Vanua’aku Pati, whose colors—red, green, black, and yellow—became the basis of the national flag.
The yellow Y-shape represents the shape of Vanuatu’s islands and is also associated with the light of the Gospel reaching across the Pacific. The black represents the Melanesian people, green symbolizes the islands’ richness, and red represents blood and unity. The emblem contains a boar’s tusk and two crossed namele fronds, symbols of tradition, prosperity, and peace.
A common mix-up is with neighboring Pacific flags such as Fiji, Kiribati, and Solomon Islands. None has Vanuatu’s distinctive Y-shaped pall. Vanuatu’s flag is also unusual because the 39 leaflets on the namele fronds are said to represent the original 39 members of Parliament.