BY Katty Kay
Donald Trump has not only normalised American foreign policy, he has arguably made it more effective.
With two high-profile, signal-sending bombing raids and a series of breathtaking policy reversals, President Trump has brought US foreign policy back in line with conventional thinking. But he has added to the equation a measure of force that gives Washington new clout.
When policy shifts so dramatically and with such little explanation, it can obviously shift again.
So we don’t know how long the new positions will last. Nato could be back out of favour, Putin back in, simply with a couple of 140 character tweets.