Story highlights Documents obtained by CNN warn of major consequences under a full-year continuing resolution

A CR would keep the military's budget at last year's level and block new programs

Washington (CNN) The Navy will cancel ship deployments and shut down carrier air wings. The Air Force will ground all non-deploying squadrons in the US. Blue Angel shows will be scrapped, and Fleet Weeks cut. Thousands of bonuses for troops will go unpaid.

Those are just some consequences the military services are warning Congress about if the legislature doesn't pass a comprehensive spending plan for the rest of this year, according to military documents sent to Capitol Hill and obtained by CNN. The warnings underscore major concerns that Congress may punt on the politically dicey budget process by simply approving a full-year continuing resolution keeping the budget at its current levels instead.

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The Pentagon has long warned that military readiness has been cut to the bone by years of constrained budgets, and the latest predictions spell out a stark loss of capabilities. But the looming showdown on Capitol Hill over spending between Democrats, Republicans and the Trump administration may be too politically fraught to stave off the damage that the military warns is coming.

The services hope their point is blunt enough to get Congress to listen. Congressional advocates for higher defense spending plan to point to the lengthy list of potential canceled trainings, maintenance and deployments to pressure lawmakers to cut a deal on spending before the April 28 deadline, after which the government would shut down for lack of approved spending.

Striking a comprehensive budget deal that can secure enough votes in both the House and Senate will be a difficult political task, however.

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