IMO
Maybe it is too late, but pull out (militarily) of all conflict in the Middle East and support the peace process between Israel and Palestine, with the accent being on the settlers moving out of the territories they have occupied.
Helping to rebuild the countries that we helped to destabilise in the first place - eg. Libya.
I don't know where that would leave all the innocent people suffering at the hands of Isis etc
. Or even how you go about "helping to re-build" a country when there are murderers running wild.
And I agree with Jeremy Corbyn that we should be apologising for our involvement in Iraq.
Is anybody scared that we will eventually find ourselves in another world war?