[m] 11 Rep. 71.
[n] 7 Rep. 32.
II. The king is considered, in the next place, as the generalissimo, or the first in military command, within the kingdom. The great end of society is to protect the weakness of individuals by the united strength of the community: and the principal use of government is to direct that united strength in the best and most effectual manner, to answer the end proposed. Monarchical government is allowed to be the fittest of any for this purpose: it follows therefore, from the very end of it's institution, that in a monarchy the military power must be trusted in the hands of the prince.
In this capacity therefore, of general of the kingdom, the king has the sole power of raising and regulating fleets and armies. Of the manner in which they are raised and regulated I shall speak more, when I come to consider the military state. We are now only to consider the prerogative of enlisting and of governing them: which indeed was disputed and claimed, contrary to all reason and precedent, by the long parliament of king Charles I; but, upon the restoration of his son, was solemnly declared by the statute 13 Car. II. c. 6. to be in the king alone: for that the sole supreme government and command of the militia within all his majesty's realms and dominions, and of all forces by sea and land, and of all forts and places of strength, ever was and is the undoubted right of his majesty, and his royal predecessors, kings and queens of England; and that both or either house of parliament cannot, nor ought to, pretend to the same.
This statute, it is obvious to observe, extends not only to fleets and armies, but also to forts, and other places of strength, within the realm; the sole prerogative as well of erecting, as manning and governing of which, belongs to the king in his capacity of general of the kingdom[o]: and all lands were formerly subject to a tax, for building of castles wherever the king thought proper. This was one of the three things, from contributing to the performance of which no lands were exempted; and therefore called by our Saxon ancestors the trinoda necessitas: sc. pontis reparatio, arcis constructio, et expeditio contra hostem[p]. And this they were called upon to do so often, that, as sir Edward Coke from M. Paris assures us[q], there were in the time of Henry II 1115 castles subsisting in England. The inconvenience of which, when granted out to private subjects, the lordly barons of those times, was severely felt by the whole kingdom; for, as William of Newbury remarks in the reign of king Stephen, "erant in Anglia quodammodo tot reges vel potius tyranni, quot domini castellorum:" but it was felt by none more sensibly than by two succeeding princes, king John and king Henry III. And therefore, the greatest part of them being demolished in the barons' wars, the kings of after times have been very cautious of suffering them to be rebuilt in a fortified manner: and sir Edward Coke lays it down[r], that no subject can build a castle, or house of strength imbatteled, or other fortress defensible, without the licence of the king; for the danger which might ensue, if every man at his pleasure might do it.
[o] 2 Inst. 30.
[p] Cowel's interpr. tit. castellorum operatio. Seld. Jan. Angl. 1. 42.
[q] 2 Inst. 31.
[r] 1 Inst. 5.
To this branch of the prerogative may be referred the power vested in his majesty, by statutes 12 Car. II. c. 4. and 29 Geo. II. c. 16. of prohibiting the exportation of arms or ammunition out of this kingdom, under severe penalties: and likewise the right which the king has, whenever he sees proper, of confining his subjects to stay within the realm, or of recalling them when beyond the seas. By the common law[], every man may go out of the realm for whatever cause he pleaseth, without obtaining the king's leave; provided he is under no injunction of staying at home: (which liberty was expressly declared in king John's great charter, though left out in that of Henry III) but, because that every man ought of right to defend the king and his realm, therefore the king at his pleasure may command him by his writ that he go not beyond the seas, or out of the realm without licence; and if he do the contrary, he shall be punished for disobeying the king's command. Some persons there antiently were, that, by reason of their stations, were under a perpetual prohibition of going abroad without licence obtained; among which were reckoned all peers, on account of their being counsellors of the crown; all knights, who were bound to defend the kingdom from invasions; all ecclesiastics, who were expressly confined by cap. 4. of the constitutions of Clarendon, on account of their attachment in the times of popery to the see of Rome; all archers and other artificers, lest they should instruct foreigners to rival us in their several trades and manufactures. This was law in the times of Britton[t], who wrote in the reign of Edward I: and sir Edward Coke[] gives us many instances to this effect in the time of Edward III. In the succeeding reign the affair of travelling wore a very different aspect: an act of parliament being made[w], forbidding all persons whatever to go abroad without licence; except only the lords and other great men of the realm; and true and notable merchants; and the king's soldiers. But this act was repealed by the statute 4 Jac. I. c. 1. And at present every body has, or at least assumes, the liberty of going abroad when he pleases. Yet undoubtedly if the king, by writ of ne exeat regnum, under his great seal or privy seal, thinks proper to prohibit him from so doing; or if the king sends a writ to any man, when abroad, commanding his return; and in either case the subject disobeys; it is a high contempt of the king's prerogative, for which the offender's lands shall be seised till he return; and then he is liable to fine and imprisonment[x].