Widely seen as a shot across the bow at the Trump administration’s lethargic pace in setting a strategy for the war in Afghanistan, Senator John McCain issued a statement Monday announcing the inclusion of an Afghan strategy in the National Defense Authorization Act in September.

“When the Senate takes up the National Defense Authorization Act in September, I will offer an amendment based on the advice of some our best military leaders that will provide a strategy for success in achieving America’s national interests in Afghanistan,” The statement read.

“More than six months after President Trump’s inauguration, there still is no strategy for success in Afghanistan. Eight years of a ‘don’t lose’ strategy has cost us lives and treasure in Afghanistan. Our troops deserve better.”

Secretary of Defense James Mattis had promised an Afghan strategy would be ready by mid-July of this year. As Chairman of the Senate Armed Services Committee, McCain has long called for a coherent strategy from the new administration, threatening to provide one to Mattis if the administration failed to do so.