Finland's NATO Membership Triggers Russian Border Warning.

Finland will become the 31st member of Nato on Tuesday, prompting a warning from Russia that it would bolster its defences near their joint border if Nato deploys any troops inside the country. Nato Secretary General, Jens Stoltenberg, said he hoped Sweden would be able to join in coming months. All 30 allies signed Finland’s and Sweden’s accession protocols. Turkey and Hungary delayed the process for months but have relented on Finland.