BREMEN, Germany — The election of Donald Trump as president is causing shockwaves in Europe’s space community, with some calling for increased spending on space capabilities to reduce reliance on the United States. During sessions at the Space Tech Expo Europe conference here and in side meetings, officials expressed concerned that an “America first” approach promoted by Trump during his election campaign could weaken cooperation with Europe on civil and military space during his administration. “It is foreseeable that our longstanding and good partner, the U.S.A., will change its space…