Maoist violence in Nepal has tended to increase in the month of February as Maoist groups mark the anniversary of their insurgency. This month already attacks have occurred in Lukla, the main entry point to the Solokhumbu and the trek to Mt. Everest. Bombs damaged the airport tower there and commercial flights have been suspended indefinitely. A general strike has been called for Feb. 22-23 and could affect transportation throughout the country and particularly in the Kathmandu Valley, including to and from the international airport. Travelers should avoid night travel Feb. 21-23 and should note how strictly the strike is being observed before moving about during the day.