1.   A bad leader, on the other hand, undermines your efforts in subtle ways.

2.   But the growth of the population continually undermines their efforts.

3.   Failure to optimise the level of support to the caring team will undermine efforts to distribute annual leave evenly among nurses.

4.   My guess was that they would find their way into the press and would undermine our efforts to settle the health dispute.

5.   The consequent noise, fumes and danger will undermine efforts to breathe new life into towns and cities.

6.   The US was accused of undermining international efforts to combat global warming.

7.   Western officials had also worried that it would undermine their efforts to build a joint state.

8.   The continued fighting threatens to undermine efforts to negotiate an agreement.

9.   An all-out war could also undermine American efforts to eradicate drug crops and dismantle Colombian-based smuggling networks.

10.   Analysts expect that shrill rhetoric in the campaign toward the West could dampen prospects for U.S. business ventures there and undermine cooperative efforts in peacekeeping.