Profit after tax increased to pound965 million ($1.2 billion) in the six months to the end of June compared with pound615 million in the first half of last year, BAE said in a statement.

Revenue climbed 13 percent to pound11 billion.

"Our global footprint, deep customer relationships and leading technologies enable us to effectively support the national security requirements and multi-domain ambitions of our government customers in an increasingly uncertain world," chief executive Charles Woodburn said alongside the earnings.

Shares in BAE rallied 4.5 percent in early London trading following the update, as the group also hiked its dividend and said it would return up to pound1.5 billion to shareholders by further repurchasing stock.

"Leading defence contractor BAE Systems posted a very strong set of results... benefiting from a general rearmament among NATO countries as the war in Ukraine grinds on," noted Andy Chambers, a director at research group Edison.

"The company's order backlog has reached a record pound66.2 billion -- this is very much typical of the sector, as modern high-tech armaments systems often take many years to produce."