Spain's commitment to NATO 'total', defence minister says

MADRID (Reuters) -Spanish Defence Minister Margarita Robles said on Friday her country is totally committed to NATO, a day after Madrid asked the alliance to be exempted from the proposed increase in the defence spending target to 5% of gross domestic product.

"Spain and its armed forces are a serious, trustworthy, responsible ally that is absolutely committed to the European Union and the Atlantic Alliance," Robles said in Madrid. "No one can call it into question."

Her comments came following a letter by Prime Minister Pedro Sanchez to NATO chief Mark Rutte on Thursday that could derail a summit at which the military alliance plans to ask them to commit to the 5% target.

In his letter, Sanchez requested a "more flexible formula" that either makes the spending target optional or excludes Spain from its application.

At an estimated 1.28% of GDP, Spain had the lowest proportion of expenditure on defence in the alliance last year, according to NATO estimates. Sanchez agreed in April to accelerate efforts to meet NATO's current target of 2% this year.

(Reporting by Inti Landauro; Editing by David Latona)