Afghanistan, Dec. 12 -- NATO Secretary-General Mark Rutte warned that Russian President Vladimir Putin could target the alliance next, urging urgent increases in defence spending and military readiness.

NATO Chief Mark Rutte has warned that the alliance could become "Russia's next target," urging member states to rapidly increase military spending and production. Speaking in Berlin on Thursday night, he said many allies still do not grasp the urgency of the threat posed by Moscow.

Rutte emphasized that despite earlier commitments to boost defence budgets at a NATO summit in The Hague earlier this year, now is "not the time for self-congratulation." He cautioned that complacency is spreading across Europe even as the continent faces one of...