Estonia's foreign intelligence chief has issued a stark warning that NATO must prepare for a long-term strategy of containing Russia over the next 10-20 years to prevent potential military aggression against the West.

Director General Kaupo Rosin emphasized in an interview with Reuters that NATO's primary task will be 'to contain or deter Russia so it doesn't get any stupid ideas to push towards the West militarily.' He stressed that while this goal is achievable, it requires serious commitment and investment from Western allies.

Estonia, which shares a border with Russia, has already doubled its defense spending to 3.4% of GDP since the war in Ukraine began - the second-highest proportion among NATO members. The country has also increased taxes to build ammunition stockpiles.

'NATO and national military plans must be credible, must be real and must be backed up with real resources, regarding troops present, follow on units, ammunition,' Rosin stated. 'If we do our homework properly, then we will be able to deter Russia.'

While Russia has repeatedly denied any intentions to attack NATO countries, its defense minister recently stated that Moscow must be prepared to fight the alliance in Europe within the next decade.

Beyond the immediate Russian threat, Rosin also highlighted concerns about China's growing technological influence, particularly in critical infrastructure. He warned about potential vulnerabilities in sectors like solar power, where Chinese-made inverters could be remotely manipulated.

'If there would be a situation where China would like to push us towards a political decision, and some sectors are, in reality, not under our control - that would mean all this equipment would be manipulable from China,' Rosin cautioned.

His comments align with recent statements from NATO leadership about increasing intelligence sharing and improving critical infrastructure protection against potential hostile acts from both Russia and China.