Question

Remove a letter from my name and I become a part of the body
My flag has reo and yellow. but I am not Spain
My cuisine is very popular but pizza is not on the menu.
share borders with 14 nations but I am not Russia
Who am I?
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Answer 1

Guess:

Ethiopia??? If not then I'm not sure lol

Answer 2

Answer:china

how?: Remove a letter from my name and I become a part of the body: remove a from china "chin"

My flag has red and yellow. but I am not Spain: china has red and yellow

My cuisine is very popular but pizza is not on the menu.:china also has great pizzas

share borders with 14 nations but I am not Russia: the important one are Russia, North Korea, Vietnam, Myanmar (Burma), India, Pakistan, Afghanistan, and four states of Central Asia.