The SB-1 Defiant is finally here and ready to party.

After years of delays, Boeing and Sikorsky's unusual coaxial rotor helicopter conducted its first flight in the skies above Florida on Thursday, the companies announced.

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MISHAWAKA — On a visit to the AM General Military Assembly plant in Mishawaka Thursday, Secretary of the Army Mark Esper highlighted his plan to modernize the Army and emphasized the important role he said AM General and its HMMWV (Humvee) will play in that modernization.

"The Humvee is a very capable light truck. It's very versatile, it allows us to perform a range of missions," Esper said. "Like we like to say, it's one of many tools in the tool kit."

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Guided missile cruiser USS Lake Champlain (CG 57) steams in the Southern California operating area. Lake Champlain is operating with the USS John C. Stennis (CVN 74) Carrier Strike Group, conducting Composite Training Unit Exercise (COMPTUEX) in preparation for an upcoming deployment. (U.S. Navy/Photographer's Mate 2nd Class Jayme Pastoric)

The U.S. Navy is proposing soon to decommission six of its 22 Ticonderoga-class cruisers. The 1980s-vintage ships, the largest surface combatants in the U.S. fleet, increasingly are suffering structural problems requiring costly and time-consuming overhauls.

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In February, the commander of the U.S. Naval Air Forces proclaimed that the Navy's F-35C Joint Strike Fighter was "ready for operations, ready for combat and ready to win" — even though the Navy's own testing data says otherwise.

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Norwegian soldiers take their positions during NATO exercise Trident Juncture 18 (DoD photo)

OSLO (Reuters) - Norway has electronic proof that Russian forces disrupted global positioning system (GPS) signals during recent NATO war games, and has demanded an explanation from its eastern neighbor, the Nordic country's defense minister said on Monday.

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brigade under the PLA 72nd Group Army. (Chinese People's Liberation Army/Peng Xianhua )

China claims to be developing "magnetized plasma artillery."

The Chinese military recently published a notice inviting researchers to devise a weapon that sounds like a sort of electromagnetic rail gun—which uses magnetism instead of gunpowder to fire shells—that several nations are developing. But actually deploying railguns has been hampered by the size of the weapon and especially the vast amount of electrical energy needed to propel a shell to speeds of greater than Mach 7. For example, despite years of research and vast sums of money, the U.S. Navy appears less than optimistic about fitting railguns on its warships.

But Chinese scientists believe that magnetized plasma artillery will be so light and energy-efficient that it can be mounted on tanks.

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