German voters head to the polls on Sunday, with the conservatives the strong favourites after a campaign rocked by a far-right surge and the dramatic return of US President Donald Trump.

Frontrunner Friedrich Merz has vowed a tough rightward shift if elected to win back voters from the far-right anti-immigration Alternative for Germany (AfD), which is eyeing a record result after a string of deadly attacks blamed on asylum seekers.

If he takes over from embattled centre-left Chancellor Olaf Scholz, as widely predicted given a yawning poll gap, the CDU leader has promised a "strong voice" in Europe at a time of chaotic disruption.

The pivotal vote in the European Union's biggest economy comes amid tectonic upheaval in US-Europe ties sparked by Trump's direct outreach to Russian President Vladimir Putin over their heads to end the Ukraine war.

Across Europe, NATO allies worry about the future of the alliance, nowhere more than in Germany which grew prosperous under the US-led security umbrella.

However, it may take Merz many weeks to negotiate a coalition government, spelling yet more political paralysis in Berlin during such fraught........

© International Business Times