To illustrate one of those ways I quote a few excerpts from the article by  Noah Shachtman on Wired. The  article  called  “Robot Planes, Life-and-Death Choices Over Gaza”:
 
…”The man, Gil’s superior officers told him, was a known Hamas terrorist. The neighborhood, a militant haven. So when the black blotch of a man stepped out into the alley, and began to fiddle with dark strings that looked suspiciously like wires, Gil’s Colonel gave the order to a second aircraft, flying nearby: Take this man out. He’s setting up a booby trap for our soldiers.

 Weapons in Gaza Mosque Struck by Israel Air Force 1 Jan. 2009

The double-tailed, 40 foot-long Heron spy drone banked over the Gaza rooftops, and zoomed in on the man, to get a better look at the now-designated target. The man was tying the wire at about eye-level, from one home to another. It was an odd location for a booby trap. But a perfect place to hang clothes. Gil, his voice rising, told everyone to stop. ‘Don’t attack! Don’t attack’ he yelled. ‘The man, he’s doing laundry.’

Looking back, Gil is pretty sure he made the right decision. But he can’t be certain. ‘I prefer this kind of mistake,’ he says in a voice, soft as tissue,’than to have the innocent on my conscience.’ “,

….”That’s different from the American system, where decisions are often made by the commander on the ground, or by a network of legal and intelligence analysts. It means means ‘a lot of moral dilemmas’ for the pale father of two. ‘You see a Qassam [rocket] launcher with children around it. Now, what do you prefer: Let them fire the rocket, and have it fall on a kid in [the Israeli town of] Sderot? Or drop the bomb, and risk Palestinian children?’ he asks.”…see here for the whole article.

And what did the Hamas doe to defend his people, knowing that shelling Sderot for 8 years and finally not renewing the truce with Israel may have some harsh consequences?…The Hamas did nothing. Miscalculating the Israeli response to their terrorist aggression, they didn’t bother to prepare their own people for the war they instigate.

Weapons Horde in Gazan Mosque 13 Jan. 2009

Al-Hayat Al-Jadida columnist ‘Omar Hilmi Al-Ghul, arrive at the same conclusion I quote…”In response to Mash’al’s call to Gaza residents to stand firm, he wrote: “[Mash’al] does not take into account the interests of the [Gaza] residents, who are being sacrificed, while the commanders, who have abandoned the fighting, hide in the tunnels they prepared in advance – although they should be courageously leading the fighters in battle.”

 

Precision Airstrikes on Hamas Terror Targets 7 Jan. 2009
 
Referring to Mash’al’s statement that the resistance is still alive and that it has not been defeated, Al-Ghul wrote: “Where is the victory that Mash’al is speaking about, allegedly from the battlefield. Can [Israel’s] renewed occupation of Gaza, its division, and the destruction of its infrastructure and its residents’ homes [be considered victory]? Can the [fact that] thousands of Palestinians have been killed or wounded, as opposed to [only a few] dozen occupying Israeli soldiers [be considered victory]?…”

And more here,  …””Hamas does not care if a destructive war is waged against Gaza – such as the one that is going on today. For Hamas, realizing an historic vision for which it has been yearning over many years justifies a heavy toll – as long as what is gained is a land crossing that will enable Hamas members to [transport] the goods and money that they have been hiding. It sees a crossing as the only opening to the outside world, as an umbilical cord [connecting it with the world]… see more here.

Israeli Air Force Strikes Rockets in Transit 28 Dec. 2008