As doubts swirl over US President Donald Trump's commitment to protecting NATO, Europe needs to take more responsibility for its own defence. After decades of underinvestment by Europe, NATO leaders agreed at a summit last year to increase defence-related spending to five percent of GDP by 2035.

Trump has frequently railed against NATO and its members, accusing them of not spending enough on defense and relying on the United States to protect Europe.

Trump arrives in Turkey to a Nato in the process of changing. Whether he likes what he see remains to be seen.

As doubts swirl over US President Donald Trump's commitment to protecting NATO, Europe needs to take more responsibility for its own defence. After decades of underinvestment by…

Germany and France are at the center of a clash over the alliance’s future.