War-driven demand boosts profits for weapons and aircraft manufacturers

US defence companies, including Lockheed Martin and Boeing, have seen limited growth in first-quarter results due to supply chain and production delays. Lockheed Martin reported lower first-quarter profit, with net earnings declining to $1.5 billion from $1.7 billion in the previous year. Boeing reported a first-quarter loss of $7 million, a reduction from the $31 million loss a year earlier, but saw its defence and space earnings increase by 50 percent to $233 million.