The white crescent and eight-pointed star on the flag of Azerbaijan symbolize the country's Turkic heritage and its ties to the Islamic world. The eight-pointed star represents the eight Turkic peoples and the eight branches of the Turkic culture. The crescent is a common symbol in Islamic flags, representing progress and the growth of the country.
Islamic FlagI think the flag you are looking for is the Singapore flag.
The national flag of Tunisa is mostly red with a white circle in the middle depicting a red crescent around a five pointed star.
It's a Red Flag with a white crescent moon in the center, pointed towards a single white star. Try seeing this page: http://en.wikipedia.org/wiki/Flag_of_Turkey
This is the Pakistani flag: http://en.wikipedia.org/wiki/File:Flag_of_Pakistan.svg The green colour represents Muslims - the religious majority of the country, while the vertical white stripe represents other religious minorities. The crescent and the five pointed star represent progress and light. The crescent is also a widely popular Islamic symbol.
AustraliaChileCubaCzech RepublicFranceIcelandLiberiaNew ZealandSloveniaThailandUnited KingdomUnited StatesI attempted to isolate nations with flags containing onlythe colors red white and blue. If there are other colors or shields/emblems with other colors, I eliminated them. There may be errors; I'm looking at small printed likenesses on trade paper.
White
Blue, Red, Green, and White
Pakistan is an Islamic country and so its flag is what is called an Islamic flag. Tradition has it that Sultan Osman I had a dream involving a giant crescent moon and from then on the crescent became a Muslim symbol while the five pointed star represents the five pillars of Islam.
The flag of Malaysia features a combination of red and white horizontal stripes with a blue field in the upper-left corner. The blue field contains a yellow crescent and a 14-pointed yellow star.
red with a vertical white crescent moon (the closed portion is toward the hoist side) and white five-pointed star centered just outside the crescent opening; the flag colors and designs closely resemble those on the banner of Ottoman Empire, which preceded modern-day Turkey; the crescent moon and star serve as insignia for the Turks, as well as being traditional symbols of Islam; according to legend, the flag represents the reflection of the moon and a star in a pool of blood of Turkish warriors
lunula
5-pointed White