Sudan:
three equal horizontal bands of red (top), white, and black
with a green isosceles triangle based on the hoist side
Suriname:
five horizontal bands of green (top, double width), white,
red (quadruple width), white, and green (double width); there is a
large, yellow, five-pointed star centered in the red band
Svalbard:
the flag of Norway is used
Swaziland:
three horizontal bands of blue (top), red (triple width),
and blue; the red band is edged in yellow; centered in the red band
is a large black and white shield covering two spears and a staff
decorated with feather tassels, all placed horizontally
Sweden:
blue with a yellow cross that extends to the edges of the
flag; the vertical part of the cross is shifted to the hoist side in
the style of the Dannebrog (Danish flag)
Switzerland:
red square with a bold, equilateral white cross in the
center that does not extend to the edges of the flag
Syria:
three equal horizontal bands of red (top), white, and black,
with two small green five-pointed stars in a horizontal line
centered in the white band; similar to the flag of Yemen, which has
a plain white band, and of Iraq, which has three green stars (plus
an Arabic inscription) in a horizontal line centered in the white
band; also similar to the flag of Egypt, which has a heraldic eagle
centered in the white band
Tajikistan:
three horizontal stripes of red (top), a wider stripe of
white, and green; a gold crown surmounted by seven gold,
five-pointed stars is located in the center of the white stripe
Tanzania:
divided diagonally by a yellow-edged black band from the
lower hoist-side corner; the upper triangle (hoist side) is green
and the lower triangle is blue
Thailand:
five horizontal bands of red (top), white, blue (double
width), white, and red