[Migrants walk through a field near the northern Greek border station of Idomeni, Friday, March 4, 2016. More than 10,000 mostly Syrian and Iraqi refugees were stuck at the country's Idomeni border as Greek officials said that nearly 32,000 migrants were stranded in the country after drastically reduce of number of transiting migrants.(AP Photo/Vadim Ghirda)]PARIS (AP) — Independent national measures to tackle the migrant crisis are counterproductive, German Chancellor Angela Merkel said Friday as she met with her French counterpart in Paris to push for a joint European solution to the problem.