US President Donald Trump and the leaders of the North Atlantic Treaty Organisation (Nato) are heading to Ankara this week for a summit that could help determine the future of the alliance.

While Trump and other leaders are expected to clash over how to reduce the US's military footprint in Europe, the Turkish government has been busy sprucing up Ankara, Turkey's political capital.

Flowers have been planted, roads repaired, and huge banners erected to conceal unsightly details, including poorly maintained buildings.

The city is expected to enter a partial lockdown on Tuesday and Wednesday.

Efforts to prevent potential protests, or any "nuisance", as Turkish officials put it, have gone so far that, in addition to members of known left-wing organisations, environmentalists and, as of Monday, pro-Palestinian activists, have also been temporarily detained to quell any surprise demonstrations in the capital.