Key takeaways Island sovereignty acts as a defensive paradox, where maritime isolation provides a strong protective moat against invasion, but leaves nations vulnerable to economic collapse via naval blockades. A 2026 US energy blockade targeting Cuba's fuel imports has triggered a humanitarian and economic crisis, marked by 20-hour daily blackouts, toxic waste burning, and violent protests. Washington is increasing pressure on Cuba to eliminate a perceived, nearby Marxist

Geopolitical pressures in the Indo-Pacific region have prompted the Australian government to significantly increase defence spending and accelerate its strategic posture. Australia is pursuing a dual-track strategy that combines the modernisation of its armed forces with the strengthening of international alliances, as part of a broader shift toward active deterrence. Australia is prioritising investment in sovereign defence industries, energy and operational resilien