Since EHV-1 is a common virus in horses, it is recommended that all horses be vaccinated at least once a year. For horses congregating at shows and competitions, more frequent vaccinations may be recommended.
Enfilade and defilade. Enfilade and defilade are concepts in military tactics used to describe a military formation's exposure to enemy fire. A formation or position is in enfilade if weapons fire can be directed along its longest axis.
Military. a heavy barrier of artillery fire to protect one's own advancing or retreating troops or to stop the advance of enemy troops. 2. a barrage of questions. 3. Civil Engineering. an artificial obstruction in a watercourse to increase the depth of the water, facilitate irrigation, etc.