Nato secretary-general Jens Stoltenberg has said Finland will become the 31st member of the military alliance on Tuesday.The move prompted a warning from Russia that it would bolster its defences near their joint border if Nato deploys any troops in its new member."From tomorrow, Finland will be a full member of the alliance," Mr Stoltenberg told reporters in Brussels.

Nato secretary-general Jens Stoltenberg has said Finland will become the 31st member of the military alliance on Tuesday.The move prompted a warning from Russia that it would bolster its defences near their joint border if Nato deploys any troops in its new member."From tomorrow, Finland will be a full member of the alliance," Mr Stoltenberg told reporters in Brussels.