text: Overview
  protectionand select areasof domainadvantage allowing for the conductof entryoperations. (Refer to JP
  3-05andADRP 3-05formoreinformation.)
  1-35. To counter the enemy’s defensive capabilities, joint forces attack from multiple directions and
  dimensions and disperse or concentrate forces depending on the intelligence preparationof the operational
  environment. (See JP 2-01.3.) Ideally, they avoid enemy defenses and seize undefended entry points
  throughverticalenvelopment, attackingtherearandflanksof a force,ineffectcuttingofforencircling the
  force. In hostile environments, assault forces conduct simultaneous force projection and sustainment to
  multipleunexpectedorausterelocationsalong a coastlineandunexpected orausterelandingzonesashore.
  1-36. Operational maneuver requires the near-simultaneous movement and support of multiple tactical
  formations by ground, air, and sea from separate staging areas to locations in depth from which their
  militarycapabilitiescanbe focused againstcriticalenemyforcesandfacilities.Highoperationaltempoand
  continuous pressure disrupts the enemy’s ability to regroup, reconstitute capabilities, or reconfigure forces
  to support new plans. The primary means of maintaining continuous pressure is the rapid cycling of joint
  functions,relatedcapabilitiesandactivitiesgroupedtogethertohelpJFCsintegrate,synchronize,anddirect
  jointoperations.
  1-37. Anintermediate staging base is a tailorable, temporarylocation used for staging forces, sustainment
  and/or extraction into and out of an operational area (JP 3-35). Intermediate staging bases (ISBs) are a
  critical capability that enables shorter range recycling of intra-theater lift capabilities, reorganization and
  reconfiguration of capabilities to meet evolving tactical demands and recalibration of battle and logistical
  rhythms. Obtaining ISBs remains a critical part of baseline condition setting for joint force employment
  worldwideinaccessoperations.AbsentISBs,thejointforce’sabilitytomaintaincontinuouspressureinthe
  faceofareadenialcapabilitiesisreducedsignificantly.
  1-38. Joint commanders can employ forces in ISBs as a deterrent or as part of a forcible entry or other
  combat operation to defeat enemy forces. Besides conducting forcible entry to secure a lodgment as a
  prelude to a larger campaign, they mayconductlimited attacksto seize keyterrain upon whichthe enemy
  has emplaced air and missile defenses and anti-satellite missiles to ensure freedom of action in other
  domains.
  1-39. Entry operations may rely on joint assets in an ISB for command and control, fires, protection,
  intelligence, reconnaissance, surveillance, and sustainment. Under austere conditions or when overcoming
  anti-access capabilities joint ISBs help reduce the requirement for large ground-based sustainment stocks
  and extended ground lines of communication, which could be vulnerable to enemy attack and which
  requireadditionalforcestosecure.
  1-40. Forcible entry may include an airfield opening to support air operations following the initial entry.
  An airfield is an area prepared for the accommodation (including any buildings, installations, and
  equipment), landing, takeoff of aircraft. (JP 3-17). As airfields are identified for use and the missions and
  aircraft for which the airfield will be opened are determined; operators and planners generate options for
  one of three operational environments: permissive, uncertain, and hostile. Once employment forces are
  assigned by the joint task force, more detailed planning is conducted in coordination with the entry force
  andUnitedStatesAirForce(USAF)first-responderairfieldopeningunits.
  ORGANIZATIONOFTHEFORCIBLEENTRYOPERATIONALAREA
  1-41. Gainingoperationalareaaccess. Jointforcesseektoachieveperiodsofadvantage ineverydomainto
  counter enemy anti-access capabilities and gain access to an operational area. They attack enemy anti-
  access capabilities and gain access to an operational area by conducting cross-domain operations in an
  effort to maximize the advantages and negate the disadvantages encountered in a single domain. Gaining
  totaldomaindominanceisrarelyobtainable,accessforcesfightfordomainsuperiority—
  (cid:122) Togainanadvantageintimeandplacethatneednotbepermanentorwidespread.
  (cid:122) At critical times and places within the operational area to achieve, the degree of freedom of
  actionrequiredtoaccomplishobjectives.
  1-42. Maintaining operational area access. The Army’s role in the joint fight for maintaining operational
  area access is the integration of ground maneuver into a joint effort; conducting entry operations; and