First of all, you would have to travel through time, not just cross national boundaries, because Yugoslavia has not existed for over 20 years!
Next, I am not sure what a "strait" line is. There are no straits in the region. On the surface of a sphere (or spheroid) such as the earth, the shortest distance between two points is a arc of the great circle, not a straight line drawn on a map which is a 2-d projection of a 3-d surface.
A great arc flight would take you over Hungary.
Italy and [The former country of] Yugoslavia are separated by the Adriatic Sea
Strait Country was created on 1981-09-04.
What small country in on a peninsula on the Strait of Hormuz? Oman
George Harvey Strait (born May 18, 1952) is an American country music singer. Strait is sometimes referred to as the "King of Country," and some critics call Strait a living legend.
Johor strait, separating Singapore with its northern neighbour country, Malaysia
GEORGE STRAIT! by far!he is the best country singer in the worldDefinitely George Strait.
The Hudson Strait is not bordered by an Iberian peninsula country (Spain or Portugal).
the Strait of Magellan
The Strait of Malacca is shared between Malaysia and Indonesia.
Morocco is separated from Spain by the Strait of Gibraltar. The strait is a narrow waterway that connects the Atlantic Ocean to the Mediterranean Sea, serving as a natural boundary between Europe and Africa.
George Strait the country singer?
North of the Strait of Gibraltar is in Europe, not in Africa so the nearest country is Spain. South of the Strait, the nearest country is Morocco, which is in Africa.