Red Square concert Russia will achieve victory in Ukraine: Putin

President Vladimir Putin told invited spectators watching a televised patriotic pop concert on Moscow's Red Square on Friday that Russia would achieve victory in its seven-month-old military campaign with Ukraine.

The concert, held in the shadow of the Kremlin walls, was being held to celebrate the annexation of four regions of Ukraine, for which Putin had signed documents a few hours earlier at a ceremony in the Kremlin.

Flanked by the leaders of their Russian-backed administrations, with the multicoloured spires of the 16th-century St Basil's Cathedral as the backdrop, Putin said people in the regions had made a choice to rejoin their "historic motherland". He said Russia would do everything to support them, boost their security and rebuild their economies.

"Welcome home!" he said, prompting chants of "Russia! Russia!" from the flag-waving crowd in the vast square.

Huge video screens showed Putin leading the spectators in three cheers of "Hurrah!" for the annexed territories, followed by a rendition of the national anthem.

Kyiv and the West have condemned the "referendums" that Moscow held in the four Ukrainian regions as unrepresentative and bogus, and said they will not give up their efforts to drive Russia out of the territory it has seized.