Covering all the bases hey. No idea where they got it from though. I don't imagine they bought it. Maybe someone in the army who was in Iraq recently brought it back.
Alcohol is flammable and can help light a bonfire. Oh, and the IRA was a tough terrorist organization.
The Irish flags are standard. They go on every year. The ISIS flag is new though. Generally the bonfires have Irish flags, and often other flags associated with Irish Republicanism such as Starry Plough flags. Flags of Gaelic football / GAA teams often turn up as well. If there has been an election recently, it's common to see election posters of Sinn Fein members on the fires. Sometimes other stuff turns up as well... for example the "IRA" letters on the one in the photo there, pried off a wall in some republican area at some point previously. All of the Irish / Irish republican items on the bonfires are basically stolen from somewhere. In nationalist areas, Irish tricolour flags are put up on street lights and telegraph poles, so at some point some lads sneak into such an area, likely in the wee hours, and make off with a few flags which end up being burned on the bonfires. All of this has been going on in exactly the same way every July for my whole life, as long as I can remember. Well, the ISIS flag is new. Some of the fires go out of their way to be deliberately as offensive as possible to nationalists. For example one of the bonfires in Belfast this year had a coffin with an effigy of Martin McGuinness, who died this year, in it. Last year the same bonfire had an effigy of Bobby Sands in a coffin. Other fires are much more reserved. A few of them have actually taken the flags off the last couple of years I think, and just had a bare bonfire without burning any flags. It depends on the area I guess, and its history and social makeup. Some places could see their way to a flagless bonfire. I don't imagine Portadown bonfires will be going flag-free for quite a few years yet, however.
I don't either considering y'all are bunch of thugs and criminals who burn children alive as part of your temper tantrum over not being able to terrorize Catholics.
