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In Uruguay.
On flagpoles
On products from Uruguay
The UN building
Embassies of Uruguay
Uruguay is not landlocked. It is bordered by Argentina to the west, Brazil to the north, and the South Atlantic Ocean to the south.
http://en.wikipedia.org/wiki/Image:Flag_of_the_Soviet_Union_1923.svg
La bandera de Uruguay.
On the west, Argentina is bordered by Chile. North, it is bordered by Bolivia, Paraguay, and Brazil, on the east, its close to Uruguay, but is mostly coastal.