Retired Gen. H.R. McMaster warns of a potential world war and stresses the need for increased defense spending.

McMaster advocates for investment in missile defense systems, citing Israel's Iron Dome as a model.

He urges NATO countries to contribute more to defense, aligning with Trump's previous demands, and critiques Germany's energy dependence on Russia.

McMaster points out Russia's hostile actions and advancements in nuclear anti-satellite technology as significant threats.

China's escalating military activities are highlighted as a concern, alongside ongoing regional conflicts involving Ukraine and Israel.

The UK's Chief of the Defence Staff, Admiral Sir Tony Radakin, confirms that the UK is considering developing its own Iron Dome system in response to global security challenges.