The latest US drone attack in Pakistans Waziristan region has sent a we told you message to the Pakistan leadership, that if it does not take on the Taliban and other extremists cross the Afghan border to attack US and allied troops, America will. A total of 27 suspected militants were killed in two US drone attacks in South Waziristan region on Monday, according to a media report. The attacks occur as US-Pakistan relations pass through a particularly tense period in the aftermath of the May 2 US raid that killed Osama bin Laden in his hideout in Pakistans garrison town of Abbottabad. The Obama administration has stepped up drone strikes inside Pakistan over the past year in particular in the North Waziristan region, stronghold of groups like the Afghan Taliban and the Haqqani network, The Christian Science Monitor reports. Pakistani officials have called publicly for the strikes to cease, insisting they alienate the general population. At the same time, the Pakistani military has also promised- as recently as late May- that an offensive against North Waziristans havens was imminent, but no such offensive has been launched in the region. The drone attacks this week suggest that the United States has no intention of waiting, the report noted. The drone strikes also convey a message that the US has certain expectations of the relationship with Pakistan, and that America will not sit by if it determines its national security is threatened, as President Barack Obama stated in his June 22 speech on Afghanistan policy. So long as I am president, the United States will never tolerate a safe haven for those who aim to kill us, Obama said. However, some Pakistan experts caution against the US pressing for something that might end up backfiring, the report said. A Pakistani military push into North Waziristan could end up further destabilizing a precariously fragile Pakistani state, warned Michael Kugelman, a South Asia expert at the Woodrow Wilson International Center for Scholars in Washington. The US either doesnt understand or chooses to disregard that having Pakistani forces enter that particular tribal area would have huge blowback. It would very likely destabilize Pakistan more than it is now, Kugelman said. Militants in the region primarily focused on routing the US from Afghanistan might be flushed out of North Waziristan, and they might end up in neighbouring territories where the militants are more focused on undermining the Pakistani state, Kugelman argued