Getty Images photographers Dan Kitwood and Win McNamee are documenting refugees' journey as they flee war in Syria and head towards safety in the European Union. Our previous gallery covered the first part of the trip: by boat from Turkey to Kos, followed by a ferry trip to Athens.
In this gallery, we catch up with the migrants and refugees in northern Greece, about to cross over into Macedonia. Up to 4,000 people make the crossing from Greece into Macedonia every day. The travellers make their way to a provisional camp near the border town of Gevgelija for some rest before resuming their journey. Inside the camp migrants are registered and given permission to be on Macedonian soil for 72 hours with free passage.
Greek and Macedonian border authorities have been letting migrants and refugees through in groups of about 50 at a time.
The Macedonian government has organised trains twice a day heading north towards Serbia. Due to large numbers of people crossing from neighbouring Greece, authorities also sometimes provide buses for transport.
Those who can afford it negotiate with local taxi drivers to take them to the Serbian border.
A Macedonian man sells water to migrants held inside a campWin McNamee/Getty ImagesAfter crossing the Greek-Macedonian border and having their papers processed, people head out of a transit area towards Gevgelija train station to find transport north to the Serbian borderDan Kitwood/Getty ImagesA Macedonian border guard asks all Syrians to raise their hands shortly after they crossed the border from GreeceWin McNamee/Getty ImagesA Macedonian border patrol leader (left) speaks with his Greek counterpart after allowing a group of 50 Syrian migrants to cross into MacedoniaWin McNamee/Getty ImagesMigrant and refugee families take a train from Gevgelija in Macedonia to the Serbian borderDan Kitwood/Getty ImagesPassengers pack into an overcrowded train from Gevgelija to the Serbian borderDan Kitwood/Getty ImagesA child is seen through the window of a bus carrying people towards the Hungarian border after they received travel documents at a processing facility in Preshevo, SerbiaDan Kitwood/Getty ImagesAfter crossing the Greek-Macedonian border and having their papers processed, families negotiate with a taxi drivers over the fare for the two-and-a-half hour drive to the Serbian borderDan Kitwood/Getty ImagesA taxi driver counts his money after dropping off a Syrian family in Tabanovtse, Macedonia, near the Serbian borderWin McNamee/Getty Images
About 2,000 people a day cross into Serbia from its southern border with Macedonia, which puts further strain on Serbia's already struggling economy. Serbia gives refugees 72 hours to decide if they want to seek asylum there, or continue on into Europe.
The travellers who enter Serbia head to a recently opened reception centre in the town of Presevo, where they receive medical aid, food and papers legalising their transit through the country.
Thousands of people wait in line with their bags for travel documents to be issued at a processing facility in Presevo, SerbiaDan Kitwood/Getty ImagesTravellers' bags are lined up at a Serbian processing facility in PresevoDan Kitwood/Getty ImagesA dispute over positions in line escalates while people wait for their travel documents to be issued at a processing facility in Presevo, SerbiaWin McNamee/Getty Images
The migrants and refugees are then bused north to Belgrade. A park in the middle of the Serbian capital Belgrade has become home to thousands of refugees trying to get into Europe. Locals have started calling the park "tent city" as it has been taken over by thousands of refugees who passing through Belgrade on their way to Europe.
Some refugees sleep in tents, but most are out in the open. The park's water sources are used for bathing.
A young boy prays on a park bench in a public park near the train station in BelgradeDan Kitwood/Getty ImagesMen wash themselves and draw drinking water in a park near the train station in BelgradeWin McNamee/Getty ImagesFreshly washed clothes are left to dry on a shrub in a public park near the train station in BelgradeWin McNamee/Getty ImagesA young Syrian girl sits on the floor of the bus station in Belgrade, where she temporarily lives with her mother, father and baby sisterWin McNamee/Getty ImagesMen walk through the main train station in Belgrade, Serbia.Dan Kitwood/Getty Images
The right-wing government of Prime Minister Viktor Orban, one of Europe's most vociferous critics of mass immigration to Europe, has vowed to cut illegal border crossings from Serbia to zero, with a 175km barrier and stringent new laws. Construction crews are completing a 3.5-metre high fence along the length of Hungary's border with Serbia to keep migrants out.
Hungary says it has no choice, having registered 165,000 migrants entering this year, flowing through the Balkan peninsula by boat and dinghy from Turkey to Greece and then over land through Macedonia and Serbia. Orban has painted Europe's worst refugee crisis since the Yugoslav wars of the 1990s as a threat to European prosperity, identity and "Christian values".
Syrian refugees check the GPS on their phones before they cross the Serbian border with HungaryWin McNamee/Getty ImagesRefugees cook corn they foraged from nearby fields as they rest near the Hungarian border in Horgas, SerbiaWin McNamee/Getty ImagesAid workers distribute food to migrants at a transition camp in Magyarkanizsa, SerbiaDan Kitwood/Getty ImagesAn aid worker distributes bread and supplies to migrants and refugees at a transition camp in Magyarkanizsa, SerbiaWin McNamee/Getty ImagesMigrants walk along railway tracks to cross into Hungary from SerbiaWin McNamee/Getty ImagesMigrants cross from Serbia into Hungary along railway tracksDan Kitwood/Getty ImagesRazor wire marks the border between Hungary and SerbiaWin McNamee/Getty ImagesMigrants and refugees stand on a deserted watch tower at the Serbian-Hungarian borderDan Kitwood/Getty ImagesPeople wrap themselves in blankets to keep warm at a collection point in Morahalom, HungaryDan Kitwood/Getty ImagesPeople who had crossed the Serbian border into Hungary keep warm by a fire as dawn breaks at a collection point in MorahalomDan Kitwood/Getty ImagesChildren who had crossed from Serbia into Hungary wait for buses to take them to a refugee campDan Kitwood/Getty Images