Translations: AA - Ahmed Ali
NQ - The Noble Qur'an
PK - Pickthal
SH - Shakir
YU - Yusuf Ali
AA - But when these months, prohibited (for fighting), are over, slay the idolaters wheresoever you find them, and take them captive or besiege them, and lie in wait for them at every likely place. But if they repent and fulfil their devotional obligations and pay the zakat, then let them go their way, for God is forgiving and kind.
NQ - Then when the Sacred Months (the Ist, 7th, 11th, and 12th months of the Islâmic calendar) have passed, then kill the Mushrikûn (see V.2:105) wherever you find them, and capture them and besiege them, and prepare for them each and every ambush. But if they repent and perform As- Salât (Iqâmat-as-Salât), and give Zakât, then leave their way free. Verily, Allâh is Oft-Forgiving, Most Merciful.[]
PK - Then, when the sacred months have passed, slay the idolaters wherever ye find them, and take them (captive), and besiege them, and prepare for them each ambush. But if they repent and establish worship and pay the poor-due, then leave their way free. Lo! Allah is Forgiving, Merciful.
SH - So when the sacred months have passed away, then slay the idolaters wherever you find them, and take them captives and besiege them and lie in wait for them in every ambush, then if they repent and keep up prayer and pay the poor-rate, leave their way free to them; surely Allah is Forgiving, Merciful.
YU - But when the forbidden months are past, then fight and slay the Pagans wherever ye find them, an seize them, beleaguer them, and lie in wait for them in every stratagem (of war); but if they repent, and establish regular prayers and practise regular charity, then open the way for them: for Allah is Oft-forgiving, Most Merciful.
Muslims are ordered to fight all non-Muslims until they cease being non-Muslims via either conversion at swordpoint or payment of an oppressive tax.
Muhammad himself thought it was meaningless as he led his most important raids during the "forbidden" months. - Craig Winn(prophetofdoom.net)
But how do you reconsile TheBattman's very interesting point - How do you slay someone AND capture them ?
ALL of your translations use the same basic wording, yet what sense does it make ?
Obviously you can choose to ignore it, but then how can you honestly say that you understand what it it telling you ?