Hey, I've been thinking about how Europe would defend against the 28 days later outbreak in France and thought of this.
Basically, these plans would only happen if every country in Europe decided to start to build defences as the outbreak happened in the UK. This gives them 28 weeks or 7 months to build them.
I have taken the liberty of assuming that the infected can't cross defended mountains or major rivers.
I can imagine that the US, Russia and almost everyone in the world would give loads of resources to the Europeans to try and stop the infection in Europe and stop it spreading to Asia. This would be in all sorts of things from arms, to food for refugee camps to actual soldiers on the ground.
France: Basically crapped, No real rivers that end in mountains to set up defensive lines and since it is such a big country this is also impractical. Its' only real lines of defence are in Brittany, Cherbourg Peninsula and the Garonne River near Bordeaux. Its plan of action would be first to try and contain the plague, but once that fails, evacuate its populations to behind the defensive lines in Brittany, Cherbourg, Garonne River and behind the Rhine and in Italy. Most of the most important government things would go to Corsica just to be doubly safe.
Belgium and Luxembourg: very crapped, no natural lines of defence and hardly any time before the infection arrives at their borders. Their main objective would be to get as much of their population and defensive capabilities behind the Rhine defences.
Germany: The major defensive line would be the Rhine. It in many places high mountain and is very wide so could easily serve as a breaker. The problem they have is that it is so long and all it takes is one infected to get through. So as soon as the infection happens in France, all German citizens on the French side of the Rhine and within 20 miles of it are evacuated to massive refugee camps. This line of defence is likely to fall though so as soon as it hits a major population centre they abandon the rest of Germany to defend along the Elbe and Danube. The Danube part would just be for the Germans and is also quite long. While the Elbe one is very long but likely to be backed by at least Austria, Poland and Czech Republic. The Germans would also try and defend Hamburg but likely to have to withdraw behind the Kiel Canal. This is probably the safest place in all Germany so the government is likely to de facto evacuate to there once the outbreak happens in France.
Netherlands: Likely to try and defend the Rhine front at all costs, however once that fails, retreat to behind the "Ramstad defence" Which would probably hold and could be re-enforced by flooding the rest of the Netherlands. Even if this fails they could defend in the peninsula of North Holland.
Denmark: Should be very safe, could carry on almost as normal until the Rhine defence falls, then re-enforce the defensive line on the Kiel Canal, once that fails retreat to a line in Southern Danish Jutland and once that fails, and retreat to the islands, taking the population with them.
Spain and Portugal: They would defend the Pyrenees with everything they had and probably enact and exclusion zone of like 40 miles so any once infected that gets through can be tracked down and killed before they do any damage. However, if the Pyrenees fall, Spain and Portugal are doomed.
Sweden and Norway: Should be the least worried in Europe apart from island nations. The infected would have to overrun all continental defences and survive the march through Lapland or the miles of sea of the Oresund to get to any major population centres, basically safe.
Switzerland: Its mountains and rivers should allow it to hide behind many different lines of defence, however all but the Alpine defences would probably fall, so it would lose the majority of its' cities.
Italy: Is one of the better defensible nations. It could 1st, have defences along the French Alps. Once these fail, retreat to the other side of the Po River. If this falls then it can pick several very defensible positions along the thin peninsula. Very likely to survive and even if everything goes wrong it would still have Sicily and Sardinia.
Poland, Czech Republic, Belarus and Lithuania: Would defend the Elbe line for the lives of everyone they know. However, this is not very strong and is a long line of defence to hold. Therefore is likely to fall. The Poles might try and create a defence line along one of their major rivers, but like France they aren't very defensible and would be likely to fail. The other nations are crapped once the Elbe falls.
Estonia and Latvia: Can have their own defensive lines, but they would likely fall. Estonia would use Lake Pepius and the sea, but for such a small nation it would be a very hard task to defend them for long and it would likely to seek evacuating its small population to Finland or Russia and its islands in the Baltic
Latvia would probably try and form a defensive line along the bottom of the Courland? Peninsula. Due to a small population, it would likely fail.
Former Yugoslavia, Austria and Hungary: Would defend the Danube line for their nations. It would start at the Alpine defences of Austria and then go along the Danube. This is also likely to fail as it is so long and the nations defending it do not have the capabilities that the Western European nations do.
Slovakia would probably defend this line to as it could easily evacuate it population behind it.
Romania: Would likely use the Carpathian Mountains to try and slow the zombie advance, once this fails, they would retreat behind the Danube. This is small enough to actually hold out, but most of the Romanian population would die if it came to this.
Greece: is like Italy, has numerous geographical choke points and by the time the Danube falls could easily evacuate its population to its islands and 1st Athens and then behind the Corinth canal.
Ukraine: would use the Crimea as a safe haven and try and evacuate the most amounts of people there. It would probably team up with Russia in a defensive line somewhere as a last ditch attempt.
Russia and Finland: Most of Russia would fall as the line of defence and the amount of infected would be too great. Finland would probably try and team up with Russia to defend itself, St Petersburg and Karelia. If this line of defence falls then Finland falls. Finland would evacuate its government to Aland Islands if that line fell. Russia would keep retreating and retreating hoping the cold and the vastness would stop the infection.
Turkey: Would probably evacuate all of mainland Thrace just to be sure but may try and defend the thin bit of the peninsula just to be sure. Would keep a worried eye on how the infection is advancing in the Caucasus.
To illistrate my points I made some maps

Showing the defensive lines.
On the one below it shows how likely I think areas are to be able to stay infected free, from Dark red = defo Zombieland to Green = Zombies only on the telly.