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Ukrainian artillery has been deployed to the Donetsk region, where soldiers have been repelling Russian troops. (April 10) AP

Tactical Fitness is a book that features some of the latest training as well as some classic old-school effective training

Fitness expert Stew Smith demonstrates multi-joint dumbbell exercises #2.

Fitness expert Stew Smith reviews the Combat Swimmer Stroke (CSS) with fins.

Fitness expert Stew Smith demonstrates TRX rollouts.

After hot and humid workouts as well as dry and arid workouts - you need to replace water and electrolytes.

We do this type of training for FREE in Severna Park, MD under the Heroes of Tomorrow program.

Fitness expert Stew Smith demonstrates balance exercises.

Here is a set of a great mix of strokes that make a challenging workout.

Jeff Nichols and I discuss the three types of people that attend special ops programs: Under-prepared, Over-prepared and the Perfectly