You found it in NATO Phonetic Alphabet

Yankee Oscar Uniform Foxtrot Oscar Uniform November Delta India Tango

Letter Breakdown

LetterNATO Word
YYankee
OOscar
UUniform
FFoxtrot
OOscar
UUniform
NNovember
DDelta
IIndia
TTango

Full NATO Phonetic Alphabet

A
Alpha
B
Bravo
C
Charlie
D
Delta
E
Echo
F
Foxtrot
G
Golf
H
Hotel
I
India
J
Juliet
K
Kilo
L
Lima
M
Mike
N
November
O
Oscar
P
Papa
Q
Quebec
R
Romeo
S
Sierra
T
Tango
U
Uniform
V
Victor
W
Whiskey
X
X-ray
Y
Yankee
Z
Zulu