That's the Italian flag (not to be confused with the Irish flag, which has horizontal green, white, and orange stripes). On the Italian flag, the order of the strips (left to right) is green, white, red.
The flag you are referring to belongs to the country of Guinea. It is comprised of three horizontal stripes in the colors of red, yellow, and green.
Sierra Leone
Do you mean red white and green? If so it's the Spanish flag, but a red white and red flag is the Austria flag.
Lithuanian flag has yellow, green and red horizontal stripes.
Ireland's flag is a vertical tricolour of green (at the hoist), white and orange. India's flag is a horizontal tricolour. Two of the stripes are green and white. The third looks orange but is officially "saffron". Niger's flag is a horizontal tricolour of green (at the bottom), white and burnt orange (at the top). The central white stripe holds a burnt orange dot.
Ireland
There are no symbols on the Irish flag. It just has 3 equal vertical stripes of green, white and orange.There are no symbols on the Irish flag. It just has 3 equal vertical stripes of green, white and orange.There are no symbols on the Irish flag. It just has 3 equal vertical stripes of green, white and orange.There are no symbols on the Irish flag. It just has 3 equal vertical stripes of green, white and orange.There are no symbols on the Irish flag. It just has 3 equal vertical stripes of green, white and orange.There are no symbols on the Irish flag. It just has 3 equal vertical stripes of green, white and orange.There are no symbols on the Irish flag. It just has 3 equal vertical stripes of green, white and orange.There are no symbols on the Irish flag. It just has 3 equal vertical stripes of green, white and orange.There are no symbols on the Irish flag. It just has 3 equal vertical stripes of green, white and orange.There are no symbols on the Irish flag. It just has 3 equal vertical stripes of green, white and orange.There are no symbols on the Irish flag. It just has 3 equal vertical stripes of green, white and orange.
White blue and red horizontal stripes
e Italian flag is green withe and red. The stripes are horizontal and the green in on the inside.
The Indian national flag has three horizontal stripes in saffron, white, and green colors. The green color represents fertility, growth, and auspiciousness and occupies 1/3 of the flag, as it is one of the three equal-sized stripes.
The flag you are describing is the flag of Mauritius. It consists of four horizontal stripes of red, blue, yellow, and green from top to bottom.
Civil and State flag, Red/White/Red horizontal stripes