text: Glossary
  lodgment
  A designatedareain a hostileorpotentiallyhostileoperationalareathat,whenseizedandheld,makes
  thecontinuouslandingoftroopsandmaterielpossibleandprovidesmaneuverspaceforsubsequent
  operations.(JP 3-18)
  maineffort
  A designatedsubordinateunitwhose missionat a givenpointintimeismostcriticaltooverallmission
  success.(ADRP 3-0)
  marshalling
  Theprocessbywhichunitsparticipatinginanamphibiousorairborneoperationgrouptogetheror
  assemble whenfeasibleormovetotemporarycampsinthevicinityofembarkationpoints,complete
  preparationsforcombat,orprepareforloading.(JP 3-17)
  missioncommand
  Theexerciseofauthorityanddirectionbythecommanderusingmissionorderstoenabledisciplined
  initiativewithinthecommander'sintenttoempoweragileandadaptiveleadersintheconductof
  unifiedlandoperations.(ADP 6-0)
  *N-hour
  Thetime a unitisnotifiedtoassembleitspersonnelandbeginthedeploymentsequence.
  *N-hoursequence
  Startsthereverseplanningnecessaryafternotificationtohavethefirstassaultaircraftenroutetothe
  objectiveareaforcommencementoftheparachuteassaultaccordingtotheorderforexecution.
  obstacles
  Anynaturalorman-madeobstructiondesignedoremployed todisrupt,fix,turn,orblockthe
  movementofanopposingforce,andtoimposeadditionallossesinpersonnel,time,andequipmenton
  theopposingforce.(JP 3-15)
  P-hour
  Thespecifichouron D-dayatwhich a parachuteassaultcommenceswiththeexitofthe firstSoldier
  fromanaircraftover a designateddropzone. P-hourmayormaynotcoincidewith H-hour.(FM 6-0)
  phase
  A planningandexecutiontoolusedtodivideanoperationindurationoractivity.(ADRP 3-0)
  plannedtarget
  A targetthatisknowntoexistintheoperationalenvironment,uponwhichactionsareplannedusing
  deliberatetargeting,creatingeffectswhichsupportthecommander’sobjectives. (JP 3-60)
  *rearechelon
  Theecheloncontainingthoseelementsoftheforcethatarenotrequiredintheobjectivearea.
  reconnaissance
  A missionundertakentoobtain,byvisualobservationorotherdetectionmethods,informationabout
  theactivitiesandresourcesofanenemyoradversary,ortosecuredataconcerningthemeteorological,
  hydrographic,orgeographiccharacteristicsof a particulararea.(JP 2-0)
  reorganization
  Allmeasurestakenbythecommandertomaintainunitcombateffectivenessorreturnitto a specified
  levelofcombatcapability.(FM 3-90-1)
  restrictedoperationsarea
  Airspaceofdefineddimensions,designatedbytheairspacecontrolauthority,inresponsetospecific
  operationalsituations/requirementswithinwhichtheoperationofoneormoreairspaceusersis
  restricted.(JP 3-52)